Which of the following is a FALSE statement?
1. Heat moves through solids by conduction.
2. Molecules move faster in warmer substances.
3. Warm water is denser than cold water.
4. Heat moves through liquids and gases by convection.

Answers

Answer 1

Answer:

3

Explanation:

heat moves through solids through conduction is correct

Molecules move faster in warmer substances but only because warm air and water are less dense

this is incorrect as cold water and air are more dense

this is correct because thats just simply what convection is

Answer 2

Answer:

3 is the false statement

Explanation:


Related Questions

Many of the foods you eat contain large molecules called polymers that are broken down into their building blocks or monomers that can be used for processes such as cellular respiration. Which of these correctly pairs a macromolecule and its monomer? Select ALL that apply.

A.) carbohydrates: monosaccharides
B.) lipids: fatty acids and glycerol
C.) carbohydrates: glycosides
D.) proteins: amino acids
E.) proteins: peptides

Many of the foods you eat contain large molecules called polymers that are broken down into their building

Answers

Answer:

A.) carbohydrates: monosaccharides

A.) carbohydrates: monosaccharidesB.) lipids: fatty acids and glycerol

A.) carbohydrates: monosaccharidesB.) lipids: fatty acids and glycerolD.) proteins: amino acids

The correct answers are A, B, and D.

Carbohydrates are made up of monosaccharides, such as glucose and fructose.

Lipids are made up of fatty acids and glycerol.

Proteins are made up of amino acids.

Glycosides are not monomers, but rather a type of compound formed when a sugar molecule is bonded to a non-sugar molecule. Peptides, meanwhile, are short chains of amino acids, but they are not the monomers that make up proteins.

A B and D all correctly pair

1. The first institution which demonstrates good physical and emotional habits to the child is the *
2 points
A church
B school
C. family
B. hospital
2. One example of secondary health care is *
2 points
A. exercising
B. hospitalisation
C. practising good hygiene
D. counselling
*
Option 1
3. The following are symptoms of emotional ill-health EXCEPT *
2 points
A. anger
B. sleepiness
C. walking
D. depression
4. Which of the following is NOT associated with the physical development of the adolescent? *
2 points
A. appearance of grey hair
B. change in tonal quality of the voice
C. production of sex cells in sex organs
D. oil producing glands in the skin become more active
5. Which of the following is NOT a cause for mental illness? *
2 points
A. physical disease
B. stress
C. skin ailments
D. genetics
6. Extreme ‘Identity Confusion’ may lead to *
2 points
A. good leadership
B. delinquency
C. experimentation
D. good role models
7. People would NOT contract sexual diseases by *
2 points
A. conversing
B. incest
C. homosexuality
D. drugs
8. Sexually transmitted diseases are increasing among teenagers and young adults because they *
2 points
A. look at too many X rated videos.
B. .engage in sex before marriage.
C. become parents at too young an age
D. do not abstain or use condoms.
9. Which of the following is NOT the way to prevent Sexually Transmitted Diseases? *
2 points
A. abstinence
B. being faithful
C. using condoms
D. doing drugs
10. Health care institutions in Guyana assist persons infected with STDs but do NOT provide *
2 points
A. facilities for prevention and early detection of the disease.
B. houses for the family.
C. necessary counselling to prevent further spread.
D. members funds for medication, etc. ​


please help me with this

Answers

Answer:

1. Family

2. Counselling  or hospitilization

3. Walking

4. A Grey hair

5. Skin Aliments

6. experimentation or deliqueny

7. conversing

8. Do not abstain or use condoms

9. doing drugs

10 houses for family

Explanation:

why would you only put this for 10 points

the blank by which water goes through the blank and blank

Answers

What is this unit on? Roman aqueducts? Irrigation systems? Is this a clock and drag question? If so, can you include an image?
give me a image and i’ll help you . I need to know what topic this is . Send me more information .

Which is a component of skill-related fitness? (10 points)

a Flexibility

b Reaction time

c Muscular strength

d Body Composition

Answers

Answer:b

Explanation:

the answer is C. the muscular strength.

What is purpose of the judicial branch of the U.S. government?
to enforce federal, state, and local laws
to hire government officials that enforce laws
to interpret laws and ensure they are applied fairly

Answers

To interpret laws and ensure they are applied fairly.
Third option, to interpret laws and ensure they are applied fairly

Which of the following measurements offers the greatest precision?

to the nearest centimeter

to the nearest meter

to the nearest millimeter

to the nearest nanometer

Answers

Answer: nanometer

Explanation: I got you bro

The nearest Nanometer has the most percision

How did the Balfour Declaration cause problems in Palestine? The British helped the Arabs take control of Palestine. The British gave up governmental control of Palestine. The British wanted the Jewish people to move out of Palestine. The British had promised Palestine to multiple groups of people.

Answers

Answer:

sulted in a significant upheaval in the lives of Palestinians, was issued on November 2, 1917.

The declaration turned the Zionist aim of establishing a Jewish state in Palestine into a reality when Britain publicly pledged to establish “a national home for the Jewish people” there.

The pledge is generally viewed as one of the main catalysts of the Nakba – the ethnic cleansing of Palestine in 1948 – and the conflict that ensued with the Zionist state of Israel.

It is regarded as one of the most controversial and contested documents in the modern history of the Arab world and has puzzled historians for decades.

What is the Balfour Declaration?

The Balfour Declaration (“Balfour’s promise” in Arabic) was a public pledge by Britain in 1917 declaring its aim to establish “a national home for the Jewish people” in Palestine.

The statement came in the form of a letter from Britain’s then-foreign secretary, Arthur Balfour, addressed to Lionel Walter Rothschild, a figurehead of the British Jewish community.

What act gave Jackson the right to negotiate with the Indians for their removal?

A.) The Federal Reserve Act
B.) The Monroe Doctrine
C.) The Indian Removal Act
D.) The Indian Movement Act
E.) The Federal Removal Act

Answers

The answer is the Indian removal act

Answer:

c

Explanation:

Please help i don't understand

Please help i don't understand

Answers

Answer:

1. According to Science.org, "Roman concrete consisted of a mixture of a white powder known as slaked lime, small particles and rock fragments called tephra ejected by volcanic eruptions, and water."

2. Arches and concrete

Answer:what does it say when you click them we won't know unless we can see?

Explanation:

How do light spectra help identify light sources?

Answers


Light spectra can help identify light sources because each element has a unique pattern of absorption or emission lines. When light passes through an element, it can be absorbed or emitted by the electrons in the element. The energy of the absorbed or emitted light is equal to the difference in energy between two electron energy levels. The different energy levels of electrons are unique to each element, so the pattern of absorption or emission lines is also unique to each element.

A spectroscope is used to separate light into its component wavelengths. The spectroscope can be used to identify the elements in a light source by comparing the pattern of absorption or emission lines to the known patterns of elements.

For example, the sun emits a continuous spectrum of light. However, when the sun's light is passed through a spectroscope, a series of dark lines are visible. These lines are caused by the absorption of light by the elements in the sun's atmosphere. The pattern of these lines can be used to identify the elements in the sun's atmosphere.

Light spectra can also be used to determine the temperature of a light source. The hotter the light source, the shorter the wavelengths of light that are emitted. This is because the electrons in the atoms of the light source have more energy at higher temperatures.

Light spectra are a powerful tool for identifying light sources and determining their properties. They are used in a variety of fields, including astronomy, chemistry, and physics.
A spectrograph — sometimes called a spectroscope or spectrometer — breaks the light from a single material into its component colors the way a prism splits white light into a rainbow. It records this spectrum, which allows scientists to analyze the light and discover properties of the material interacting with it.

Read this excerpt from The Odyssey .

I said to him as plausibly as I could: 'Cyclops, you ask my name and I will tell it you; give me, therefore, the present you promised me; my name is Noman; this is what my father and mother and my friends have always called me.'
What conclusion about Ulysses could a reader draw from this passage?

He is a liar.
He is cunning.
He is a coward.
He is brave.

Answers

I think tgat it issssss cunning
The answer is ‘He is cunning’

HELP PLS!

A. “For imposing taxes on us without our consent”

B. “For quartering large bodies of armed troops among us”

C. “He has combined with others to subject us to a jurisdiction foreign to our Constitution and unacknowledged by our laws, giving his assent to their acts of pretended legislation”

D. "For depriving us, in many cases, of the benefits of trial by jury."

Question: Listed above are four examples of colonial grievances found in the Declaration of Independence.

Choose any THREE and describe how they were addressed by the U.S. Constitution and/or Bill of Rights

You MUST use complete sentences in your answer.

Answers

Answer:

i don't know but I hope u cool

what is the meaning of these lyrics in your own words.

Old pirates, yes, they rob I
Sold I to the merchant ships
Minutes after they took I
From the bottomless pit
But my hand was made strong
By the hand of the Almighty
We forward in this generation
Triumphantly
Won't you help to sing
These songs of freedom?
'Cause all I ever have
Redemption songs
Redemption songs
Emancipate yourselves from mental slavery
None but ourselves can free our minds
Have no fear for atomic energy
'Cause none of them can stop the time
How long shall they kill our prophets
While we stand aside and look? Ooh
Some say it's just a part of it
We've got to fullfil the book
Won't you help to sing
These songs of freedom?
'Cause all I ever have
Redemption songs
Redemption songs
Redemption songs
Emancipate yourselves from mental slavery
None but ourselves can free our mind
Woah, have no fear for atomic energy
'Cause none of them-a can-a stop-a the time
How long shall they kill our prophets
While we stand aside and look?
Yes, some say it's just a part of it
We've got to fullfill the book
Won't you help to sing
These songs of freedom?
'Cause all I ever had
Redemption songs
All I ever had
Redemption songs
These songs of freedom
Songs of freedom

Answers

Answer:

There theifs who need food and water but they like stealing and some times they will take hostges

Explanation:

Answer:

A sad song about dead pirates

Explanation:

write 3 paragraphs about harriet tubman

Answers

Answer:

Harriet Tubman was an escaped enslaved woman who became a “conductor” on the Underground Railroad, leading enslaved people to freedom before the Civil War, all while carrying a bounty on her head. But she was also a nurse, a Union spy and a women’s suffrage supporter. Tubman is one of the most recognized icons in American history and her legacy has inspired countless people from every race and background.

Pls answer giving brainliest to the person with the best answer

Pls answer giving brainliest to the person with the best answer

Answers

1) (circle is) this is an advertisement as it has a slogan and is attracting an audience, in this case writers, to come and join with offering them special deals.

I’m not so sure for the second and third one…. Sry
3. This is not a advertisement because it is news and not a promotion about a specific item, what i notice is that the article wants us to know when is Cheryl’s birthday, not a promotional question.

Western Europe's climate is shaped by the Atlantic Ocean's _____________________.

Responses


Precipitation

Hurricanes

Warm Winds

Cold winds

Pls Help :(

Answers

Warm winds……………………….
western europe’s climate is shaped by alantic’s warm winds

First Inaugural Address of Andrew Jackson, selected quotes WEDNESDAY, MARCH 4, 1829 "Fellow-Citizens: ... In administering the laws of Congress I shall keep steadily in view the limitations as well as the extent of the Executive power trusting thereby to discharge the functions of my office without transcending its authority. ... In such measures as I may be called on to pursue in regard to the rights of the separate States I hope to be animated by a proper respect for those sovereign members of our Union, ... This I shall aim at the more anxiously both because it will facilitate the extinguishment of the national debt, the unnecessary duration of which is incompatible with real independence, ... that the spirit of equity, caution and compromise in which the Constitution was formed requires that the great interests of agriculture, commerce, and manufactures should be equally favored ... As long as our Government is administered for the good of the people, and is regulated by their will; as long as it secures to us the rights of person and of property, liberty of conscience and of the press, it will be worth defending ... " According to Jackson, what is required of the national government for it to "be worth defending"? (5 points) a The national government must favor the interests of agriculture over all others. b The national government must restrict freedoms of the press and assembly. c The national government must allow the president to act as he sees fit. d The national government must protect people's rights and property.

Answers

I think D
Hope this helps:)

Kyra is a farmer moving to Georgia and she prefers a more mild climate. Which region would Krya MOST LIKELY choose to live? (AKS 30b, DOK2)

A.
Blue Ridge

B.
Coastal Plains

C.
Piedmont

D.
Appalachian Plateau

Answers

Answer:

the awser is blue ridge

Explanation:

A

In a situation where Kyra is a farmer moving to Georgia, and she prefers a more mild climate, it is best in her interest to choose Blue Ridge as a preferred region to live. Therefore, the option A holds true.

What is the significance of a mild climate?

A mild climate can be referred to or considered as a region having such climatic conditions wherein it does not receive a very heavy rainfall throughout the year, and neither does it have a very hot and humid temperatures during the summer. Such climate is suitable for farming.

As Kyra is a farmer, and is moving to Georgia for farming purposes, Blue Ridges is the region she shall opt to live in, because it has a mild climate with average heat and decent amount of rainfall, making it ideal for her to practice farming in the region.

Therefore, the option A holds true and states regarding the significance of mild climate.

Learn more about mild climate here:

https://brainly.com/question/10799978

#SPJ2

Which sentence best conveys the argument in "The Case for Shelter Animals"? People should rescue animals from pet stores. Pet stores sell puppy mill animals that are not well-cared for. Animals shelter pets become beloved family members. Animal shelters treat animals in their care poorly.

Answers

Answer:

the third one

Explanation:

makes u pity them

Which of the following is the main reason that the development of the printing press in the Renaissance helped more people understand the Bible?
A.
Bibles were now printed in Latin, which most people understood.
B.
New books were placed to the Bible, making it popular with new readers.
C.
Pamphlets that contained advertisements for the Bible were printed in Europe.
D.
The Bible was printed in the languages of many different people, allowing more people to read it.

Answers

Answer:

The main reason the development of the printing press in the Renaissance helped more people understand the Bible was because the Bible was printed in the languages of many different people, allowing more people to read it.

Explanation:

Option A: Bibles were now printed in Latin, which most people understood - Incorrect. Latin was primarily understood by scholars and the clergy, not the general population.

Option B: New books were placed in the Bible, making it popular with new readers - Not the main reason. The Bible itself was not extensively modified or added to during this time.

Option C: Pamphlets that contained advertisements for the Bible were printed in Europe - Not directly related to understanding the Bible's content.

Option D: The Bible was printed in the languages of many different people, allowing more people to read it - Correct. The printing press enabled the translation and printing of the Bible in various languages, making it accessible to a broader audience and increasing understanding.

To read more about the development of the printing press in the Renaissance:

https://brainly.com/question/13825491

please help!!! I need to know the settings, figurative language, charactization and key passage in A wrinkle in time please but as many as you know.

Answers

Answer: Meg Murry lives in an unnamed town on the planet Earth. Though we know it's autumn, we do not know the exact year in which the story events take place. some examples of figurative langauge are "Silence fell between them, as tangible as the dark tree shadows that fell across their laps and that now seemed to rest upon them as heavily as though they possessed a measurable weight of their own." "From the shoulders slowly a pair of wings unfolded, wings made of rainbows, or light upon water, or poetry."

Explanation: this is all i know

they live in a unknown world!!

Why does the air circulation direction change from the daytime to the nighttime?

Answers

Answer:

At night, surface cooling reduces the eddy motion of the air. Surface winds will back and decrease. Conversely, during the day, surface heating increases the eddy motion of the air. Surface winds will veer and increase as stronger winds aloft mix with the surface.

Explanation:

hope that helps :)

Driven by sunlight and solar heating

Use the drop-down menus to complete the sentences.
The
Choose...
is especially important to China's early history. Winds from the Gobi Desert blow
Choose...
onto the river valley. When the river floods, it then deposits the rich material onto the surrounding plain. Because of this,
Choose...
was made possible in China.

Answers


The
Choose...
is especially important to China's early h in China.

Answer:

The

Choose...

is especially important to China's early history. Winds from the Gobi Desert blow

Explanation:

hope it helps

An effective thesis statement will


1: refer to your essay by telling the reader what you will do
2: speak directly to the reader using second person point of view
3: state your specific ideas about the topic in one sentence
4: tell your reader what you think or believe

Answers

The best answer I believe is number 3.
i think it’s 4 because it’s supposed to be an opinion ig

Consider the same imaginary government that took over yesterday. The government decrees that because of your religious faith, you and your family will be deported to another country to help rebuild their war damaged industries. The government promises the exile will be temporary and you and your family will be allowed to come back when the war ends. They said that you will be able to return and take possession of your home and other personal belongings once again.In the meantime, they have issued a warning that anyone caught attempting to escape or hid will be put to death.Write a short story that contains at least 2 paragraphs. The short story should be in the first person perspective of yourself in the scenario above. Drop us right into the action. You must use complete sentences and your story must have a plot.

Answers

As the sun dipped below the horizon, casting an eerie glow over the city, my family and I huddled together in our dimly lit living room. Fear hung heavy in the air, as news of the government's decree echoed through the streets. We were to be exiled, torn from the only life we had ever known, forced to rebuild war-damaged industries in a foreign land. Our crime? Our unwavering religious faith, deemed incompatible with the new regime's ideology.

With trembling hands, I clutched the faded photograph of my children, the last remnants of our once joyous existence. The government's promises of a temporary exile and the hope of returning home seemed frail in the face of the harsh warning that awaited those who dared to escape or hide. Death loomed like a specter, whispering its sinister message into every corner of our lives.

The morning arrived, casting its pale light through the curtained windows. The government's enforcers pounded on our door, their heavy boots resonating through the empty corridors. We exchanged tearful glances, silent pleas for strength. With heavy hearts, we surrendered ourselves to our captors, unsure of what awaited us beyond the borders we were about to cross. As we were led away, I looked back one last time, memorizing the contours of our home, the place that had witnessed our triumphs and sorrows, the sanctuary that held our cherished memories.

Days turned into weeks, and weeks into months. The foreign land greeted us with shattered buildings and scarred landscapes, a testament to the horrors of war. Our hands, once calloused by the tender touch of home, now toiled amidst the ruins, rebuilding what had been lost. We labored from dawn till dusk, our spirits battered but unbroken.

Amidst the rubble, a flicker of hope ignited within me. I remembered the government's promise of return, the reassurance that our sacrifices would not be in vain. It became our beacon, guiding us through the darkest of days. We poured our sweat and blood into the reconstruction, not just for the sake of the war-ravaged industries but for the chance to reclaim our lives, our home.

Years passed, and the war's echoes grew fainter. Finally, the day came when the government's grip loosened, and whispers of peace danced through the air. With bated breath, we awaited confirmation that we could return. And as the long-awaited news arrived, a surge of joy engulfed our weary souls. The moment had come to leave the foreign land behind, to embark on a journey back to our beloved homeland.

As we stepped foot on familiar soil, a wave of nostalgia washed over us. Our hearts swelled with gratitude and resilience. The scars of exile would forever mark us, a reminder of the sacrifices endured, but our determination to rebuild what was lost burned brighter than ever.

Gazing at our once desolate home, now standing tall and proud, I whispered a prayer of gratitude. The journey had been arduous, the risks unimaginable, but we had emerged from the crucible, stronger and more resilient. And as the door creaked open, revealing the forgotten treasures of our past, we stepped inside.

Answer:

In the quaint town of Haven brook, nestled amidst rolling hills and whispering forests, an air of mystery hung thick in the summer breeze. It was a place where legends were born and secrets whispered among the townsfolk. I found myself at the centre of an enigmatic tale, embarking on a journey that would unravel the truth hidden beneath the surface.

It all began when I stumbled upon an ancient parchment tucked away in the attic of my ancestral home. The weathered script spoke of a fabled treasure buried deep within the heart of the town, promising unimaginable riches and a power that could reshape destinies. Intrigued and fuelled by a longing for adventure, I delved into the shadows of Haven brook, determined to uncover the truth.

As I followed the cryptic clues etched within the parchment, the town revealed its hidden depths. Whispers of forgotten legends and untold stories echoed through the cobblestone streets, leading me to unlikely allies and treacherous adversaries. With each step, the line between reality and myth blurred, and I found myself caught in a web of deception and danger.

The journey became a test of wits and courage, as I unravelled the secrets of Haven brook's past. The townsfolk, initially wary of my presence, soon recognized my unwavering determination to unearth the truth. Together, we pieced together the fragments of a forgotten era, unearthing relics and lost artifacts that held the key to unlocking the treasure's location.

But as the final pieces fell into place, a sinister force emerged from the shadows, desperate to claim the power for themselves. Betrayal lurked around every corner, and I realized that the true treasure lay not in gold and jewels, but in the bonds forged through adversity and the resilience of the human spirit.

In a climactic showdown, we faced our nemesis, their greed fuelled by a thirst for dominance. With courage and unity, we stood against the darkness, determined to protect the legacy of Haven brook and preserve its secrets. The battle raged on, each side unleashing their hidden strengths, until finally, the light prevailed, and the treasure remained safeguarded, hidden once more from the world.

As the dust settled and peace restored, I returned to my humble existence in Haven brook, forever transformed by the journey. The legends and secrets of the town continued to weave their magic, reminding me of the power of curiosity and the enduring spirit of those who dare to seek the truth, no matter the cost.

Which rock layer is older, Layer A or Layer B? Explain how you know.

Answers

layer b

Explanation:

Layer b is below layer a so there fore layer b

It depends on if Layer A or Layer B is the top. If you have a graph, the one farthest away from the top (so the bottom) will be the oldest.

What questions do geographers ask themselves to help organize space?

Answers

Where is it? Why is it there? What are the consequences of its being there?
What are the consequences of it being there? Why is it there? Where is it?

• Which landforms are unable to be found on the ocean floor?

1. continental shelf

2. trench

3. volcanoes

4. mountains

Answers

Dont take it seriously
ig ig its 1

Mountains is correct

Match the volcanic names with the correct description of the volcano.
1. shields A. flat-topped seamounts which exhibit prior surface
erosion.
2. composite cones B. volcanic peaks under the sea.
3. seamounts C. broad volcanoes with fast-flowing lava and shallow
slopes.
4. guyots D. volcanoes with steep slopes and alternating layers of
cinders and basalt flows.

Answers

Answer:

1A

Explanation:

The answer will be A A flat-topped seamounts which exhibit prior surface

How did the War of 1812 help the growth of American Industry?

Answers

In can be said that the American War of 1812 with Great Britain accelerated the pace of industrialization, particularly in the north. ... While the Embargo Act and War of 1812 forced Americans to produce their own goods, it did challenge manufacturers of New England in that they lost markets for their goods overseas.
Other Questions
Comment on the QOD for the gas law lab: What effect does the limiting reactant mass have on the molargas volume? Hint: This question is asking about MOLAR gas volume, not simply gas volume. why did the preamble to the constitution begin with the phrase we the people Lines a & m are parallel. Using the diagram below, what is the degree measure of angle 3?Enter the numerical answer only. Example, if the answer is 12 degrees, only enter 12. The prophetic orientation in religion is particularly strong in:_______A. Protestant christianity. B. Tibetan buddhism. C. Vedic hinduism. D. Taoism Which of these is NOT a factor in determining restoration order? a. Speed of implementation b. Dependencies c. Process of fundamental importance d. Alternative business practices What caused William Henry fox talbot to explore photography? environmentalists want to estimate the percent of trees in a large forest that are infested with a certain beetle. the environmentalists will select a random sample of trees to inspect. which of the following is the most appropriate method for creating such an estimate? responses a two-sample z -interval for a population proportion a two-sample z -interval for a population proportion a one-sample z -interval for a sample proportion a one-sample z -interval for a sample proportion a one-sample z -interval for a population proportion a one-sample z -interval for a population proportion a two-sample z -interval for a difference between sample proportions a two-sample z -interval for a difference between sample proportions a two-sample z -interval for a difference between population proportions What 3 lines from the poem "Death Be Not Proud" by John Donne show imagery? Type the correct answer in the box. Spell all words correctly.Which organism is responsible for cervical cancer?Marta is infected with a sexually transmitted disease. Diagnosis reveals that she is infected with the ( ___ ) , which causes cervical cancer The Security Classification Guide (SCG) states: The dates of the training exercise are Secret. The new document states: (S) The training exercise runs Monday through Friday and occurs every June based on trainer availability. The only trainer currently certified is running other exercises the first three weeks in June. What concept was used to determine the derivative classification of the new document? the data in the table below represents a linear relationship . what is the missing piece of data table and answer choices will be in chatA) -6 B) -2 C) 2 D) 6 Which of the following is NOT considered a reason for women who stay in abusive relationships by DV experts?Mark only one oval. She is afraid it is safer to stay than leave due to threats to family She likes the abuse She has been isolated and has no support She has no financial means to leave Please answer this asap. how does the mother's behavior change over the story two kinds why was jefferson willung to fight freedom of the sea versus the pasha of tripoli but not against britian How much power is required to do 6 kJ of work in three minutes? How might the issue of u.s- imposed tariffs impact u.s relations with britain how does chromosome compaction differ during metaphase and interphase in eukaryotes? what african region had pyramids hieroglyphs and tombs If a sample contains 12.5% parent, how many half lives ave passed? If the radioactive pair is K-40 and Ar-40, what is the actual age of the sample?