What causes the sun to appear to move across the sky?
Earth's orbit
Earth's tilt
Earth's poles
Earth's rotation
Answers
Earth's rotation.
hope it helps :D
Related Questions
What is the smartest state?
What part of London is in Brazil?
What state is round on the ends and high in the middle?
Answers
The letter L, What state is round on the ends and high in the middle?
Ohio
A pilot took off at 7am from GMT. he will covering 30longitudes west to reach his place. at what time he reah his destination?
Answers
Answer:
20 is the longitude for it
Answer:
5 a.m
Explanation:
Hope this helps u !!
Some scientists claim that they can determine when the earth first formed as a planet. which technique do scientists use today to determine when the earth first formed?
Answers
The technique which scientists use today to determine when the earth first formed is called as Analysis of uranium and lead in meteorites.
The concepts of radiometric dating and their use in calculating the age of the Earth are explained by geologist Ralph Harvey and historian Mott Greene. As uranium decays in rocks, it produces subatomic particles and converts to lead at a steady pace. Measuring the uranium-to-lead ratios in the planet's oldest rocks gave scientists an estimate of 4.6 billion years.
The discovery of radioactivity at the turn of the century was a watershed moment. Scientists found that pebbles may literally be used as watches. Many chemical elements in rock exist in a variety of slightly different isotopes.
Certain isotopes are unstable and undergo radioactive decay, slowly and steadily converting into a new isotope molecule by molecule. The rate of decay for a given isotope is constant, and the time it takes for one-half of a particular isotope to decay is known as its radioactive half-life.
Every 100 million years, for example, around 1.5 percent of Uranium 238 will decay to lead. The age of a rock sample may be established by examining the ratio of lead to uranium in it. Scientists may "look" back in time using this technique, known as radiometric dating.
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Which shows the correct path of how energy flows in a food chain
Answers
Answer:
producer → primary consumer → secondary consumer → decomposer
Explanation:
the producers eats plants and the primary consumers feeds on the producers. the secondary consumers feeds on the primary consumers while the decomposers eats the dead.
The geologic past can be explained by extending current geologic processes backward over long periods of time. This frame of reference is known as ___.
Answers
Answer : The geologic past can be explained by extending current geologic processes backward over long periods of time. This frame of reference is known as Uniformitarianism.
Explanation :
What is uniformitarianism? Uniformitarianism is the theory that the geologic past can be explained by extending current geologic processes backward over long periods of time.
Uniformitarianism is a fundamental principle of geology, which is the study of Earth's physical structure and substance, its history, and the processes that shape it. It is a viewpoint that has been adopted by the vast majority of geologists and is regarded as a bedrock principle of the field.
Uniformitarianism is based on the idea that the same geological processes that are active today were active in the past and that they have acted in the same way and at the same rate throughout Earth's history.
The basic idea behind uniformitarianism is that the natural laws that govern the physical world today are the same laws that have always governed it in the past. This means that the processes and mechanisms that have formed the geological features of the present Earth are the same ones that formed the features of the past.
Therefore, by studying the processes that shape the Earth today, scientists can gain insights into the geological processes that shaped it in the past.
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Find the value of x.
X
50°
108
80
50
64
Answers
x = 80
Step-by-step explanation:
Triangle max measure: 180*
Given measure: 50*
Congruent measure angle: 50*
50 + 50 = 100
180 - 100 = 80
x = 80
The scale for the map of California to the right is 1/8 inch:25 miles.if the southern border on the map measures 5/8 inch,about how long is California’s actual southern border
Answers
Answer:
125 miles
Explanation:
(1/8)*5=5/8
so
25*5=125 miles
The Wright-Fisher model is a discrete-time Markov chain which models stochastic fluctuations in the genetic composition of a population caused by random variation in reproduction and survival. If this variation is independent of an individual's genotype, then the resulting fluctuations are known as genetic drift. Here we will describe a version of the Wright-Fisher model for a haploid population containing two alleles, A and B, which are subject both to genetic drift and mutation. We will make the following assumptions: - Generations are discrete and non-overlapping, i.e., each adult reproduces and then dies at the end of their generation. - Exactly N offspring survive to adulthood in the next generation. - Each surviving offspring is descended from a parent chosen independently and uniformly at random from the N adults alive in the preceding generation. - Each offspring descended from an A-type parent either inherits the A allele with probability 1−v or they inherit the B allele with probability v, i.e., v is the mutation rate (per generation) from A to B. - Similarly, each offspring descended from a B-type parent either inherits the B allele with probability 1−u or they inherit the A allele with probability u, i.e., u is the mutation rate (per generation) from B to A. If X n
denotes the number of adults carrying the A allele in generation n, then X=(X n
:n≥0) is a discrete-time Markov chain with values in the space {0,1,⋯,N} and transition probabilities: p ij
=P(X n+1
=j∣X n
=i)=( N
i
)( N
i
(1−v)+ N
N−i
u) j
( N
N−i
(1−u)+ N
i
v) N−j
. (a) Derive the transition probability p ij
from the assumptions given above. (b) Find the stationary distribution for X when N=10 and u=v=0.01. (c) Find the stationary distribution for X when N=10 and u=v=0.1.
Answers
(a) The transition probability p_ij can be derived from the given assumptions of the Wright-Fisher model. The probability represents the likelihood of the genetic composition of a population changing from having i individuals carrying the A allele in generation n to having j individuals carrying the A allele in generation n+1. The transition probability is given by the formula:
p_ij = (N choose j) * ((N-i)(1-v) + iv)^j * ((N-i)v + (i)(1-u))^(N-j)
This equation incorporates the binomial coefficients (N choose j) to account for the different ways in which j individuals carrying the A allele can be chosen from N individuals, as well as the probabilities of inheriting the A or B allele based on the mutation rates u and v.
(b) To find the stationary distribution for X when N=10 and u=v=0.01, we need to solve for the probabilities of each state X_n reaching a steady state. By setting up a system of equations using the transition probabilities and solving for the stationary distribution, we can determine the long-term proportions of individuals carrying the A allele in each generation.
(c) Similarly, to find the stationary distribution for X when N=10 and u=v=0.1, we repeat the process from part (b) with the updated values of u and v. This allows us to calculate the steady-state probabilities for each state X_n.
By obtaining the stationary distributions for different parameter values, we can understand how genetic drift and mutation impact the genetic composition of a population over time according to the Wright-Fisher model.
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14. Which best describes how ice cores can provide scientists with evidence for climate change over a period of time? A. Ice cores form only during ice ages. . B. Dark rings in the ice core indicate climate change. C. The temperature of the ice core is lower in layers formed when tempera D. The concentration of gases in the ice core indicate colder or warmer te 15 Which is the best evidence that Earth went through an Ice Age?
Answers
Answer:
I believe it is D
Explanation:
Scientists cut open ice cores to look at gases to see the gas concentration and therefore the climate change
10 Given that you are neither falling into the earth or being flung out into the sky, at any depth below you there must be equal and opposite vertical forces acting in the earth beneath your feet or beneath the building you are in. At a given depth, the force down is produced by gravity and equals the weight of all that is above the depth at that location. The counteracting force up is exerted by which of the following?
a. Fluid pressure
b. Upward moving magma
c. Fluid pressure and the structure of grains and rocks
d. None of the above
Answers
The correct answer is option c: Fluid pressure and the structure of grains and rocks. These factors together exert an upward force that balances the downward force of gravity, preventing the Earth from collapsing inwards or objects from being flung out into the sky.
At any given depth below the surface of the Earth, there are equal and opposite vertical forces acting.
The force down at a particular depth is a result of gravity, which pulls all objects towards the center of the Earth. This force is equal to the weight of all the material (including the Earth's crust, rocks, buildings, etc.) above that depth. However, to maintain equilibrium, there must be an equal and opposite force acting upwards.
The counteracting force is exerted by fluid pressure and the structure of grains and rocks. The Earth's crust and underlying layers consist of various types of materials, including rocks and grains, which have intermolecular forces and structural integrity.
These forces and structures allow them to resist the downward force of gravity and provide an upward force to maintain equilibrium. Additionally, fluids like water or magma exert pressure in all directions, including upwards, contributing to the counteracting force.
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The counteracting force up at a given depth beneath the Earth's surface is exerted by fluid pressure and the structure of grains and rocks. Therefore, the correct answer is option c) Fluid pressure and the structure of grains and rocks.
As you descend deeper into the Earth, the weight of the material above increases, and gravity pulls you downward. However, the pressure exerted by the surrounding fluid and the mechanical strength of the grains and rocks in the Earth's crust counteract the downward force. This balance of forces ensures that you are neither falling into the Earth nor being flung out into the sky.
Fluid pressure, such as the pressure exerted by groundwater or magma, acts in all directions and helps support the surrounding rock and maintain equilibrium. Additionally, the interlocking structure of grains and the cohesive strength of rocks contribute to the counteracting force.
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Use the information in the boxes and your knowledge of social studies to answer the following question:
Its people are mainly of The dominant religion Most people speak the Arab descent is Islam Arabic language
To which cultural region do all of these statements most likely apply? A. North Africa C. Latin America B. Sub-Saharan Africa D. European Union
Answers
Based on the facts given, it is most likely that cultural region A, North Africa, is covered by the assertions. Islam is the most common religion in North Africa, and the language spoken by the vast majority of people there is Arabic.
What is famed in North Africa?Between the Mediterranean coast and the Sahara Desert in North Africa, there are stunning mosques, vibrant markets, and historic ruins. There have been numerous Berber kingdoms there over the course of its lengthy history, in addition to the Greek, Roman, and Ottoman empires.
In the far north of the continent, there are seven nations that make up the UN subregion of North Africa: Algeria, Egypt, Libya, Morocco, Sudan, Tunisia, and Western Sahara. One-third of Africa's GDP is produced in North Africa, which is a region of economic prosperity.
With more than 7.7 million residents as of 2022, Cairo was the metropolis with the highest population in North Africa. Alexandria and Casablanca came in second and third, with 3.1 million and 2.4 million inhabitants, respectively. The most populous nation in North Africa is Egypt.
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PLEASE HELP I NEED THIS RIGHT AWAY.
which statement best describes the role of plate tectonics in changes that occur on Earth?
A. convection currents in the mantle cause mountain ranges to slowly collapse over time.
B. the movement of plates build pressure that is released during an earthquake.
C. the subduction of ocean crust cools the mantle and prevents volcanic eruptions.
D. seafloor spreading causes ocean basins to get smaller in the shower over time.
Answers
Answer:B.the movement of plates builds pressure and is released during an earthquake.
Answer:
The answer is A
Explanation:
I just did it on AP3X
what is the highest value a line of longitude will have?
Answers
The highest value a line of longitude will have is 180 degrees.
The highest value of a line of longitude will be 180 degrees east or 180 degrees west of the Prime Meridian. Longitude is an angular measurement that determines the east-west position of a point on Earth's surface. It is measured in degrees, minutes, and seconds, with 360 degrees being the full circle of the Earth. The Prime Meridian, which is located at 0 degrees, is the line of longitude from which all other lines of longitude are measured. The International Date Line is located at 180 degrees and serves as the transition line between calendar days.
:Longitude is an angular measurement that determines the east-west position of a point on Earth's surface. The highest value a line of longitude will have is 180 degrees.
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Child labor is a serious challenge throughout Central and East Asia, especially in agricultural communities where cash crops are grown. Using complete sentences, identify the two largest cash crops grown in Central Asia. Why do you think that most of the world is against the practice of child labor? Do you think that child labor could hurt a country’s future development?
I AM TIMED TRY TO HURRY PLZ AND THANK YOU.. I WILL GIVE 30 POINTS
Answers
what kind of energy does the pounding of ocean surf demonstrate?
Answers
The pounding of ocean waves demonstrates kinetic energy.
The sound produced by the sea waves as they hit the shore or a rocky surface is known as ocean surf. In other words, ocean surf refers to the movement of water caused by wind that creates waves on the ocean's surface that crash against the shore.
When ocean waves hit the shore, they exert force, which is a kind of kinetic energy. Waves crashing into the shore, for example, can erode rock or push debris or logs along the shore. The pressure from the pounding surf is also utilized by power plants to generate electricity by turning turbines.
As a result, the pounding of the ocean waves demonstrates kinetic energy.
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What are the characteristics of continental tropical air masses?
O They have cool, dry air
O They have warm, dry air.
O They have cool, moist air,
0 They have warm, moist air.
Answers
Answer:
B or option two.
Explanation:
The characteristics of continental tropical air masses is that they have warm, dry air.
What is continental tropical air mass?Continental air masses are dry air masses originating from land which are characterized by clear skies and negligible rainfall.
It is to be noted that the air mass comes from desert regions in the middle or lower latitudes around summer.
Hence, the characteristics of continental tropical air masses is that they have warm, dry air.
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Maps differ from photographs in many significant ways including
Answers
Answer: Maps have many details, lines, trails, paths but pictures do not.
Explanation:
within earth's mantle, convection cells move lithospheric plates toward ____ and away from ____.
Answers
Within Earth's mantle, convection cells move lithospheric plates toward subduction zones and away from mid-ocean ridges.
Convection cells in the mantle play a crucial role in driving the movement of tectonic plates on the Earth's surface. These cells are generated by the transfer of heat from the deeper parts of the mantle towards the surface. As hot material rises and reaches the top of the mantle, it spreads horizontally and moves the overlying lithospheric plates.
At subduction zones, where one tectonic plate is forced beneath another, the convection cells cause the lithospheric plates to move towards these areas of subduction. Here, one plate descends into the mantle, creating a convergent boundary where intense geological activity occurs, such as the formation of volcanic arcs and mountain ranges.
On the other hand, at mid-ocean ridges, where tectonic plates diverge, the convection cells drive the lithospheric plates away from these spreading centers. As new material rises from the mantle, it pushes the plates apart, creating seafloor spreading and the formation of new oceanic crust.
In summary, convection cells in the mantle move lithospheric plates toward subduction zones and away from mid-ocean ridges, driving the dynamic processes of plate tectonics.
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circle lake chad and the atlas mountain and what direction would a camel caravan travel to get from lake chad to the atlas mountains
Answers
To get from Lake Chad to the Atlas Mountains, a camel caravan would travel in a northwesterly direction. Here's an explanation of why: Circle Lake Chad and the Atlas Mountain: Lake Chad is located in the west-central part of Africa. The Atlas Mountains are located in northwest Africa.
The two are separated by a large stretch of land that includes the Sahara Desert. A camel caravan that wants to travel from Lake Chad to the Atlas Mountains must cross this desert. A desert caravan usually travels in the direction that will minimize the risk of dehydration and heat exhaustion caused by the sun. A journey in a northwesterly direction is often the best option because it allows for shorter journeys between Wate sources. The he Atlas Mountains are located in the northwest region of Africa, while Lake Chad is located in the central region of Africa. To reach the Atlas Mountains, a camel caravan from Lake Chad would need to travel in a northwesterly direction, passing through the Sahara desert. The direction of travel is influenced by the need to minimize the risk of dehydration and heat exhaustion due to the scorching heat of the sun.
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What role does Canada play in the world
Answers
Answer:
For more than fifty years, Canada has been a presence as a humanitarian actor on the world stage. Canada has become a driving force for international peace, working toward global disarmament (including the elimination of landmines), and the eradication of such diseases as HIV/AIDS and malaria.
Explanation:
Please help me with this
Answers
Answer:
11. The Mesosphere
12. The Stratosphere and Troposphere
Which of the following is NOT a result of supernova explosions? a) the neutron star is disrupted and tears apart into many pieces b) many of the elements the star fused during its life are blasted out into space O c) a tremendous flood of high-energy cosmic ray particles is released d) any planets within a few dozen light-years of the explosion are bathed with life-threatening radiation e) new heavier elements (including such heavy nuclei lead and uranium) are fused by neutron bombardment during the explosion
Answers
The best alternative is option A - the neutron star is disrupted and tears apart into many pieces. Supernova explosions are incredibly powerful and have a range of effects on the surrounding environment.
When a star goes supernova, it releases an enormous amount of energy, which can cause the outer layers of the star to be blasted out into space. This explosion can also create a shockwave that compresses nearby gas and dust, triggering the formation of new stars. Additionally, the high-energy cosmic ray particles released during a supernova explosion can have an impact on the surrounding environment, affecting everything from the composition of the interstellar medium to the formation of planetary systems. However, while the explosion can disrupt the neutron star, it does not tear it apart into many pieces. Instead, the neutron star may collapse into a black hole or form a highly magnetized object known as a magnetar. Overall, supernova explosions are complex phenomena with far-reaching consequences that continue to fascinate astronomers and astrophysicists alike.
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8. Recall that this is what a compass would look like if you were orienting yourself to the northwest. If you wanted to go southeast, how would the compass be positioned? Draw your answer below. (15 points)
Answers
Answer:
its in Wikipedia go type south east to north west
Explanation:
its actually kind of a angle from in between north and west and also in between south and eastb
If a person wanted to go southeast, the magnetic needle of the compass would be positioned between south and east.
What is a Compass?
A compass is a machine or a device that depicts the cardinal directions that are essential for navigation.
Simply put, it is used for finding direction. See the attached image for a compass that is pointing between the south and the east.
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Help PLEASE! BRAINLIEST STARS AND HEARTS IF CORRECT!!!
Answers
Answer:
the climate was probably to dry for farming
Explanation:
let me know if right if it was
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aslo there was a map but i didnt see it so hope it was right?
How do the pieces of hard candy model the formation of new rock?
Answers
Answer: When magma cools, it hardens to form igneous rock. How they figure it out: They observe rock samples and explore the Simulation, finding different ways to make rock form. They model the formation of sedimentary rocks using hard candy, and view a video showing igneous rock formation as magma cools.
Explanation:
Hope this helps :)
The pieces of hard candy model the formation of new rock. When magma cools, it hardens to form igneous rock. They observe rock samples and explore the Simulation, finding different ways to make rock forms. They model the formation of sedimentary rocks using hard candy and view a video showing igneous rock formation as magma cools.
What is magma?Magma is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles.
Magma is produced by melting of the mantle or the crust in various tectonic settings, which on Earth include subduction zones, continental rift zones, mid-ocean ridges and hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal-rich mush zones.
During magma's storage in the crust, its composition may be modified by fractional crystallization, contamination with crustal melts, magma mixing, and degassing.
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What characteristics differentiate a reverse fault from a normal fault?
a.
In a reverse fault, the hanging wall moves up and the footwall moves down.
b.
In a reverse fault, the hanging wall moves down and the footwall moves up.
c.
In a reverse fault, the footwall does not move while the hanging wall moves down.
d.
In a reverse fault, the hanging wall does not move while the footwall moves down.
Answers
Answer:
Reverse faults are exactly the opposite of normal faults. If the hanging wall rises relative to the footwall, you have a reverse fault.
Explanation:
niemand's article on climate change in the editorial section of today's newspaper offers a weak argument. his reasoning consists of little more than unsubstantiated assertions that climate change is not affected by human activity. in an effective evaluation, which element would follow this statement?
Answers
An effective evaluation of the article would include providing evidence and counterarguments from reputable scientific sources to refute his claims and highlight the overwhelming scientific consensus on the human cause of climate change.
Niemand's article on climate change in the editorial section of today's newspaper offers a weak argument. His reasoning consists of little more than unsubstantiated assertions that climate change is not affected by human activity. In an effective evaluation, the next element would be to provide evidence and counterarguments to refute Niemand's claims.
The overwhelming majority of scientific research supports the idea that human activity, specifically the burning of fossil fuels and deforestation, is a significant contributor to climate change. By failing to provide evidence or cite any sources to support his claims, Niemand's argument lacks credibility.
An effective evaluation would then provide evidence from reputable scientific sources to counter Niemand's claims. This could include data on rising global temperatures, increased carbon dioxide levels in the atmosphere, and the impact of human activities on the Earth's climate. Additionally, it could also provide examples of how other countries and organizations are taking action to mitigate the effects of climate change, such as investment in renewable energy sources and implementation of carbon reduction policies.
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You uncover a mammoth bone and analysis finds 12.5% of the expected amount of C-14 that would be found in a living mammoth. How long ago did the animal die? (half-life of C-14 is 5730 years)
You discover what appears to be an ancient campsite north of Toronto. The ash from a fire pit is collected and analyzed. When the results came back, it was found that the ratio of C-14 remaining was 44.4% of the expected value. How long ago did the discovered civilization exist?
Answers
To determine the age of the mammoth bone and the discovered civilization, we can use the half-life of C-14, which is 5730 years.
For the mammoth bone:
If the bone contains 12.5% of the expected amount of C-14, it means that 87.5% of the C-14 has decayed. Using the half-life of C-14, we can calculate the number of half-lives that have passed.
87.5% = (1/2)^(n), where n is the number of half-lives.
Solving for n, we find that n ≈ 3.122.
Since each half-life is 5730 years, we can multiply the number of half-lives by the half-life duration to get the approximate age of the mammoth bone.
Age ≈ 3.122 * 5730 years ≈ 17,920 years.
For the discovered civilization:
If the ash from the fire pit contains 44.4% of the expected amount of C-14, it means that 55.6% of the C-14 has decayed. Again, using the half-life of C-14, we can calculate the number of half-lives that have passed.
55.6% = (1/2)^(n).
Solving for n, we find that n ≈ 2.491.
Multiplying the number of half-lives by the half-life duration gives us the approximate age of the discovered civilization.
Age ≈ 2.491 * 5730 years ≈ 14,245 years.
Therefore,
the mammoth died approximately 17,920 years ago, and the discovered civilization existed approximately 14,245 years ago.
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critically discuss how Japanese people reacted to the terrible damage from the earthquake and tsunami?
Answers
Answer:
The 11 March 2011, Mw 9.0 Great East Japan Earthquake, already among the most destructive earthquakes in modern history, emanated from a fault rupture that extended an estimated 500 km along the Pacific coast of Honshu. This earthquake is the fourth among five of the strongest temblors since AD 1900 and the largest in Japan since modern instrumental recordings began 130 years ago. The earthquake triggered a huge tsunami, which invaded the seaside areas of the Pacific coast of East Japan, causing devastating damages on the coast. Artificial structures were destroyed and planted forests were thoroughly eroded. Inrush of turbulent flows washed backshore areas and dunes. Coastal materials including beach sand were transported onto inland areas by going-up currents. Just after the occurrence of the tsunami, we started field investigation of measuring thickness and distribution of sediment layers by the tsunami and the inundation depth of water in Sendai plain. Ripple marks showing direction of sediment transport were the important object of observation. We used a soil auger for collecting sediments in the field, and sediment samples were submitted for analyzing grain size and interstitial water chemistry. Satellite images and aerial photographs are very useful for estimating the hydrogeological effects of tsunami inundation. We checked the correspondence of micro-topography, vegetation and sediment covering between before and after the tsunami. The most conspicuous phenomenon is the damage of pine forests planted in the purpose of preventing sand shifting. About ninety-five percent of vegetation coverage was lost during the period of rapid currents changed from first wave. The landward slopes of seawalls were mostly damaged and destroyed. Some aerial photographs leave detailed records of wave destruction just behind seawalls, which shows the occurrence of supercritical flows. The large-scale erosion of backshore behind seawalls is interpreted to have been caused by
define rock and minerals with examples
Answers
Answer:
A mineral is a pure substance with a specific composition and structure, while a rock is typically a mixture of several different minerals (although a few types of rock may include only one type of mineral). Examples of minerals are feldspar, quartz, mica, halite, calcite, and amphibole.
Explanation:
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