Either an element or
mpound that cannot be
physically separated

Answers

Answer 1

Answer:

Substance

Review:

Element:

⇒ One of a class of substances that cannot be separated into simpler substances by chemical means.

Compound:

⇒ A pure substance composed of two or more elements who composition is constant.


Related Questions

WILL GIVE BRAINLIEST!!!!!!!!
The egg in the Hawaiian punch turned blue. Assume the inside of the egg is blue too. By what process did the dye enter the egg?

Active transport

Osmosis

Diffusion

Endocytosis

Answers

Answer:

Active transport

Explanation:

Which trophic level does a fish represent in this food chain?



algae → mosquito larva → dragonfly larva → fish → man

Answers

A fish represents the third trophic level in this food chain. The trophic level of an organism refers to its position in a food chain or food web. It is determined by the organism's source of energy and nutrients.

In this food chain, algae serve as the primary producers, converting sunlight into chemical energy through photosynthesis. Mosquito larva, which feed on algae, represent the second trophic level as primary consumers. Dragonfly larva, which feed on mosquito larva, represent the third trophic level as secondary consumers.
Fish, which feed on dragonfly larva, represent the fourth trophic level as tertiary consumers. As they are at a higher trophic level, fish require more energy and nutrients to sustain their growth and metabolism. Fish obtain this energy by consuming other organisms lower in the food chain.
Finally, humans, who consume fish, represent the fifth trophic level. As apex predators, humans do not have any natural predators, and they obtain their energy by consuming other organisms at lower trophic levels.
In conclusion, a fish represents the third trophic level in this food chain, as a tertiary consumer feeding on organisms from the second trophic level.

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For which of the following problems would growing and maintaining cover crops be an appropriate solution? (3 points)

I. Erosion is thinning the soil on a farm.
II. The organic matter and nutrients in the soil on a farm are being depleted.
III. The soil on a farm is becoming arid due to decreased water-carrying capacity.

A. I and II only
B. I and III only
C. II and III only
D. I, II, and III

Answers

Cover crops are suitable for preventing erosion, evapotranspiration of water from soils, as well as prevent leaching of nutrients. The correct option is D.

Functions of cover crops

Cover crops are grown primarily to protect the soil from the following:

water and wind erosionexcessive evaporation of watermineralization of nutrientsweed and pests.

In addition, some cover crops are able to fix nitrogen into soils and serve as a source of green manure for the soil.

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When Mendel’s first generation pea plants were allowed to self-pollinate, the ratio of tall (dominant) to short (recessive) plants in the second generation was

Answers

Answer:

3:1

Explanation:

Gregor Mendel, who is regarded as the Father of Genetics, worked with pea plants throughout his research. He observed the trait for height in the plants. In the gene for height in pea plants, the allele for tallness (T) is dominant over the allele for shortness (t).

Mendel's first generation pea i.e. F1 plants, which were derived by crossing tall (TT) and short (tt) parents in the P generation, were heterozygous for tallness (Tt). When these F1 plants were allowed to self pollinate i.e. Tt × Tt, the following proportion of offsprings were produced in the F2 generation:

- TT, Tt, Tt, and tt

- Tall 3 : short 1

When Mendels first generation pea plants were allowed to self-pollinate, the ratio of tall (dominant)

Answer:

3:1

Explanation:

3 because the dominant is always masking the recessive

so

TT, Tt, Tt, tt

Hope this helps!

What are two possible changes that might occur in a green insect species if the green grass it uses for camouflage turns brown due to drought

Answers

I guess evolution could eventually occur causing the insect species to darken but since it's a drought it's probably a short period

another thing is the species is hunted and dies out. their source of camouflage is gone leaving them out in the open for predators

What happens to the spores when a sporangium splits open

Answers

Answer:

when the sporangia dry out they break and is released to the air

Explain how one factor related to climate could make the city shown in the diagram susceptible to prolonged periods of ground-level ozone and smog.

Answers

Temperature inversion is one climatic element that may render the city depicted in the graphic prone to extended periods of ground-level ozone and smog.

Thus, a temperature inversion happens when warm air is confined above colder air close to the ground. Due to this condition, ground-level ozone and smog are created as a result of the vertical mixing of pollutants being prevented and the pollutants being trapped at the surface.

According to the graphic, the stagnant air mass can trap pollutants generated from several sources, including automobiles, industry, and power plants, worsening the creation of ground-level ozone and smog, especially if the city is located in a valley or a region prone to temperature inversions.

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10+ points ! :) Identify and label the following terms on the models: compound, element, and chemical formula.

10+ points ! :) Identify and label the following terms on the models: compound, element, and chemical

Answers

Answer:

Compounds => carbon dioxide, water

Element => Carbon (C), Oxygen (H), and Hydrogen (H)

Chemical formula: \( CO_2 \), \( H_2O \)

Explanation:

Compound is the combination of two or more atoms of different elements.

The compounds in the models are: carbon dioxide and water

The Elements in the models combine to form the compounds:

They are:

Carbon (C), Oxygen (H), and Hydrogen (H).

Chemical formula that shows the proportion in which the atoms of each element are combined to form the compounds in the models are:

\( CO_2 \) for carbon dioxide, and

\( H_2O \) for water.

Phycology (50 points)

Answer them all, Please and Thank you.

1.) Physical changes that usually occur in the middle-aged adult include all the following EXCEPT

a. decreased reaction time
b. increased stamina
c. deteriorating eyesight
d. dry, inelastic skin

2.) Which statement about the midlife transition in Daniel Levinson's theory of male development is NOT TRUE?

a. Generativity, a man's desire to use his wisdom to guide future generations, can be especially satisfying during the midlife transition.
b. The quality of a man's relationship with his wife will likely to be an important factor in his midlife transition.
c. Stagnation, hanging on to the past, is another way to successfully make the midlife transition.
d. During the midlife transition, a man reevaluates his life in regard to his past and future goals.

3.) Which statement most accurately represents a perspective based on the decremental model of aging?

a. "I'm 70 years old, and I'm training for the next marathon."
b. "I can't go shopping this weekend because I have to go to my grandmother's graduation ceremony."
c. "The doctor tells me that I have heart disease because I've eaten poorly all of my life."
d. "I've got arthritis, hardening of the arteries, and insomnia, but what do I expect? I'm 75 years old!"

Answers

1.) Increased stamina.

2.) Stagnation, hanging on to the past, is another way to successfully make the midlife transition.

3.) The doctor tells me that I have heart disease because I've eaten poorly all of my life.

Hope this helps! If it did, may i have brainliest please?

What type of scientist would be the best qualified to perform genetic engineering to pro- duce seed that are more productive in agriculture? A. biochemist B. geologist C. molecular biologist D. paleontologist

Answers

The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.

Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.

Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.

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NEED HELP WILL GIVE BRAINLIEST!!!

Water has the ability to dissolve salts and carry dissolved carbon dioxide. How does this action help the human body maintain homeostasis?

A.) Both are involved in providing energy to the cells.

B.) These materials can be cycled through the body.

C.) The body will be able to absorb materials it needs from the environment.

D.) Waste can be removed from the cells of the body.

Answers

Answer:

i think its D

Explanation:

Because homeostasis is to maintain the internal enviroment of an organsism body constant .

organs responsible for homeostasis :

lungs: keep the concentration of carbondioxide and oxygen constant

skin: regulates the body temperature

kidney: regulates the concentration of water and urea

liver : regulates blood sugar level

To maintain the same concentrations inside the cells as outside of them, the blood's water and mineral ion levels are regulated. By preventing too much water from entering or exiting the cells through osmosis. Thus, option D is correct.

What action help the human body maintain homeostasis?

Your body makes use of hormones like glucagon and insulin to maintain homeostasis. Insulin is released to counteract this alteration if your blood glucose level is too high.

Insulin helps your body cells absorb extra sugar from your blood. Glucagon reacts immediately if your blood glucose level is low.

The neural and endocrine systems maintain homeostasis. A response to a stimulus known as negative feedback keeps a variable near to a predetermined value.

Therefore, Waste can be removed from the cells of the body by homeostasis.

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why is it necessary to stain bacterial cells in order to view them using brightfield microscopy

Answers

While most stains can only be used on fixed, non-living cells, it is possible to examine cells and components very clearly under the microscope to use a method called microscope cell staining.

Why is it important to stain bacteria?

Since living bacteria are nearly colorless, it is difficult to distinguish them from the liquid in which they are floating. Staining is done to make the contrasts between the organisms as well as the backdrop stronger so that they may be seen more clearly under a light microscope.

What significance does staining have?

Staining is employed to draw attention to significant tissue characteristics and to improve tissue contrast. Eosin, another staining dye used in histology, gives the cell's nucleus a pinkish stain whereas hematoxylin, a basic dye that is frequently employed in this technique, gives the nuclei a bluish tint.

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3) nitrifying bacteria participate in the nitrogen cycle mainly by a) converting nitrogen gas to ammonia. b) releasing ammonium from organic compounds, thus returning it to the soil. c) converting ammonia to nitrogen gas, which returns to the atmosphere. d) converting ammonium to nitrate, which plants absorb. e) incorporating nitrogen into amino acids and organic compounds.

Answers

Nitrifying bacteria participate in the nitrogen cycle mainly by option A: converting nitrogen gas to ammonia.

Gaseous nitrogen is present in the atmosphere. In nitrogen fixation, bacteria turn nitrogen into ammonia, a plant-useable form of nitrogen. Through bacteria and other single-celled prokaryotes, nitrogen enters the living world. This implies that option A is the most appropriate choice.

The conversion of atmospheric nitrogen into biologically useful forms is known as nitrogen fixation. It is possible to convert nitrogen using both biological and physical methods. Fixation, ammonification, nitrification, and denitrification are significant nitrogen cycle processes.

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How can we use dna sequence (order of nucleotides) to determine relatedness of organisms?

Can y’all help me in this question ☝

Answers

DNA sequence can be used to determine relatedness of organisms by comparing the sequence of nucleotides between two organisms. By comparing the sequence of nucleotides, scientists can determine how closely related two organisms are. The more similar the sequence of nucleotides, the more closely related the two organisms are.

What was the LEAST LIKELY driver for this speciation event?

What was the LEAST LIKELY driver for this speciation event?

Answers

The LEAST LIKELY driver for this speciation event is the similarity in the pollination method (Option C).

What is speciation?

Speciation is a biological process where a species and/or population undergoes divergence and generates new species, which is generally associated with barriers in the gene flow.

This evolutionary process (speciation) requires to produce of reproductive barriers (e.g. mechanical barriers) that lead to the restriction in the gene flow and subsequent divergence of lineages.

The similarity between different patterns cannot produce speciation because it leads to the same ecological processes.

In conclusion, the LEAST LIKELY driver for this speciation event is the similarity in the pollination method (Option C).

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Arrange the stages of ecological succession in the sequence in which they occur.

Answers

1. Nudation 2. Migration 3. Ecesis 4. Competition 5. Reaction 6. Stabilization

Answer:

Nudation

migration

ecesis

competition

reaction

stabilization

Explanation:

Arrange the stages of ecological succession in the sequence in which they occur.

C What is the important of making prority

Answers

Answer:

Priorities will guide you in life's decisions and keep you on track. Most importantly, priorities will give you the confidence to say "no." They help you identify what's truly needed in your life, versus what someone else feels is important.

Answer:

The importance of it are Establishing priorities is necessary in order to complete everything that needs to be done. Prioritization is important because it with allow you to give your attention to tasks that are important and urgent so that you can later focus on lower priority tasks.

Mecanismo de defensa de algunos animales que consiste en un aislamiento en cuevas o madrigueras durante los periodos desfavorables del año a Madriguera es verdadero o falso

Answers

Answer:

Responder:

CIERTO.

Explicación:

Este es un ejemplo de adaptaciones conductuales conocidas como adaptaciones anti-depredadoras. Esto es principalmente importante en áreas donde hay poca vegetación. Los búhos de madriguera, las tortugas que viven en los desiertos y las suricatas son ejemplos. Estos animales se encuentran en regiones de baja vegetación. Por lo tanto, no están protegidos de los depredadores. Por lo tanto, cavan profundo bajo tierra para escapar del depredador.

Además, debido a que estas regiones son principalmente áridas, los animales necesitan escapar de la alta temperatura y, por lo tanto, conservar el agua.

Please write a paragraph including feelings and questions after reading this writing, include your understanding reflection. I appreciate it if you do this please please

Please write a paragraph including feelings and questions after reading this writing, include your understanding

Answers

Not sure what you mean by understanding reflection but i'll do my best.

World War II was one of / if not the biggest tragedy to happen in modern history. It taught the world important lessons about society; that we need to work together and not let our differences enable another global conflict to the degree of WW2. However, history never completely repeats itself and while WW2 was a terrible and unimaginable tragedy, it provided us with information that can help us all in avoiding a future conflict similar in nature. However, how is the author so certain that history doesn't repeat itself? Have we not seen history do such thing. For example, there were vaccination protests all throughout history just like how there is vaccination protest today. So, I am interested in how the author came to his conclusion that WW2 will not inevitably repeat itself.

What happened when Mendel cross pollinated purple and white flowers?

Answers

Mendel then combined these plant lines for purebreeding and noted the characteristics of the hybrid offspring. He discovered that every F1 hybrid of the first generation resembled one of the mother plants.

What will occur if a purple floral and a white flower are crossed?

Mendel observed that the F1 generation produced by hybridizing true-breeding  progeny plants only exhibited one feature of a characteristic. A true-breeding purple-flowering plant, for instance, might have been crossed with a truthful white-flowering plant.

What happened as a result of Mendel's cross-pollination?

However, Mendel found that crossing two distinct purebred plant varieties resulted in offspring that resembled either of the parents, not a combination of the two.

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What have scientists determined the average salinity of ocean water to equal?


3.45 g/mL


34.5 g/mL


34.5 g/kg


3.45 g/kg

Answers

Answer:

2. it his the best chub in changce

Explanation:

In this lab exercise, were the results of the indole test necessary to differentiate between Salmonella and
Shigella? Explain why or why not.

Answers

In this lab exercise, the results of the indole test were not necessary to differentiate between Salmonella and Shigella.

This is because both Salmonella and Shigella are non-indole producers, meaning that they do not have the ability to produce indole.

Therefore, a negative result for indole production would not be a distinguishing factor between the two bacteria. Other tests, such as the motility test and the lactose fermentation test, would be more useful in differentiating between Salmonella and Shigella.

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hello people ~
what's a punnet square?​

Answers

Answer:

what's a punnet square?

The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given. In its simplest form, the Punnett square consists of a square divided into four quadrants.All possible genotypes for the haploid female gametes are listed across the top, one genotype at the head of each column; and down the left side of the square, all of the possible genotypes for the haploid male gametes are listed, one per row

I just made her answer much longer

a student finds radish seeds stored in a drawer. the student decides to experiment with the seeds. the student places 25 seeds into the three following treatments:treatment 1- 25 seeds on a moist paper towel in a ziplock bag.treatment 2- 25 seeds on a dry paper towel in a ziplock bagtreatment 3- 25 seeds in moist potting soil in a plantertreatment 4- 25 seeds in dry potting soil in a planterwhich observations would help the student make an inference that water is required for the germination of seeds?

Answers

In order for the student to make an inference that water is required for the germination of seeds, they should observe the rate and success of germination in each of the four treatments.

If the seeds in treatment 1, which are on a moist paper towel, germinate and grow successfully, while the seeds in treatment 2, which are on a dry paper towel, do not, this indicates that water is necessary for germination. Similarly, if the seeds in treatment 3, which are in moist potting soil, germinate and grow successfully, while the seeds in treatment 4, which are in dry potting soil, do not, this further confirms the importance of water for seed germination.

The student should also observe any changes in the appearance of the seeds over time. If the seeds in treatments 1 and 3 show signs of swelling and splitting, while the seeds in treatments 2 and 4 remain unchanged, this is another indication that water is necessary for the germination process to occur. Overall, the success and growth of the seeds in the moist treatments compared to the dry treatments would provide strong evidence to support the inference that water is required for seed germination.

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In what position should the stage be located when you first begin to focus in on an object? Why would you put it in this position?

Answers

Stage should be place in front of audience as performers can perform infront of the audience

What effect does the Continental Divide in the United States have on water runoff?

Answers

Answer:

It separates the water that runs toward the Pacific Ocean from the water that runs toward the Atlantic and Arctic Oceans and the Gulf of Mexico.

Archaea are composed of ________ cells.
Archaea are composed of ________ cells.
eukaryotic
prokaryotic
bacterial
animal

Answers

Answer is Prokaryote

Explanation

Archaea are composed of prokaryotic cells.
Archaea are micro-organisms similar to bacteria.

Archaea are composed of Prokaryotic cells. The correct option is B.

Thus, Any single-celled prokaryotic organism that belongs to the domain Archaea has unique molecular characteristics that set it apart from bacteria, the other, more well-known group of prokaryotes.

It is from eukaryotes, which include organisms like plants and animals and whose cells contain a defined nucleus.

The word archaea comes from the Greek word archaios, which means "ancient" or "primitive," and some archaea do in fact exhibit traits deserving of that description.

Thus, Archaea are composed of Prokaryotic cells. The correct option is B.

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1. What are the different types of fish (classification of fish)? 2. Give an example of an oily fish. 3. Give two examples of fish with shells. 4. Write two most popular ways of cooking fish. 5. Shrimps, Lobsters and Crabs are also referred to as

Answers

Answer:1. types of fish- there are 3 types, jawless fish( Agnatha), cartilaginous fish (Chondrichthyes), and bony fish(Osteichthyes).

2. Oily fish example- salmon, tuna, trout, and mackerel.

3. Shellfish example- shrimp, crab, oysters, lobster.

4. Two popular ways of cooking fish- dry heat, and grilling.

5. shrimps, lobsters, and crabs are referred to as arthropods.

Explanation

The _____ theory proposes that toxins in the environment and the need of the body to repair the damage they create are responsible for the aging process.

Answers

The toxin theory proposes that toxins in the environment and the need of the body to repair the damage they create are responsible for the aging process.

As we age, our bodies are exposed to various environmental toxins that can cause damage to our cells, tissues, and organs. The toxin theory of aging proposes that the accumulation of this damage over time, and the body's need to constantly repair it, eventually leads to the breakdown of various biological systems and ultimately, the aging process. This theory suggests that reducing exposure to environmental toxins and increasing our body's ability to detoxify itself may help to slow down the aging process. Additionally, lifestyle factors such as a healthy diet, regular exercise, and stress reduction can also help to reduce the impact of environmental toxins on our bodies and promote healthy aging.

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Which researcher theorized that hypnosis comes about as a form of roleplay between hypnotist and subject? a. ernest hilgard b. theodore sarbin c. theodore barber d. milton erickson

Answers

Milton Erickson is the researcher who theorized the hypnosis that comes out form the roleplay between hypnotist and subject.

What do you mean by Hypnosis?

Hypnosis may be defined as a state that corresponds to sleep but is caused by a person whose directions are readily accepted by the subject.

Milton Erickson performed a lot of research on the concept of hypnotism. He specializes in hypnotism and the unconscious state of mind to a larger extent.

Therefore, Milton Erickson is the researcher who theorized the hypnosis that comes out form the roleplay between hypnotist and subject.

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most of cells dna is found in its what Describe what a high and low frequency electromagnetic wave look like: A farmer wants to divide 8085 ha of gr ing into 9 or 15 camps of equal size. How did he know, without doing a division calculation that the 15 camp division is an easier practical solution than the 9 camp division? an atom's identity is directly determined by a. the number of electrons it has b. the number of neutrons it has c. the number of protons it has d. the number of bonds it can form e. its atomic weight Calculate the indicated function values in the following problems. Simplify your answers. In nineteenth century, physical science was divided into discipline. . Consider Line 2, which has the equation: y = = - 1/3x + 14, Give the equation of the line parallel to Line 2 which passes through: (-7,4). What beliefs are shared by most Christians? Check all that apply. A pair of linear equations is shown below: y = 3x + 5 y = x + 2 Which of the following statements best explains the steps to solve the pair of equations graphically? (4 points) On a graph, find the point of intersection of two lines, the first line has y-intercept = 5 and slope = 3, and the second line has y-intercept = 2 and slope = 1. On a graph, find the point of intersection of two lines, the first line has y-intercept = 3 and slope = 5, and the second line has y-intercept = 1 and slope = 2. On a graph, find the point of intersection of two lines, the first line has y-intercept = 5 and slope = 3, and the second line has y-intercept = 2 and slope = 1. On a graph, find the point of intersection of two lines, the first line has y-intercept = 3 and slope = 5, and the second line has y-intercept = 1 and slope = 2. Which statement is true? 1. Waves carry objects as they travel through water. If we wait, the waves will move the ball back onto the beach.2. Waves don't carry things as they travel through water. I think we need to swim out and get the ball. A lines y intercept is 3 , & its slope is 8 . What is its equation in slope-intercept form ? Simplify the expression.-6(-9 + 5n)TSubmit Lou says to his granddaughter Audrey, "Even if you tripled your age and added 9, you still wouldn't be as old as I am. Lou is 60 years old. Write and solve an inequality to determine the possible ages Audrey could be. Imagine a simple economy with only two people, Augustus and Livia. a. Let the social welfare function be W= UL+UA where UL and UA are the utilities of Livia and Augustus, respectively. Graph the social indifference curves. How would you describe the relative importance assigned to their respective well-being? b. Repeat part a when W= UL + 2UA c. Assume that the utility possibilities curve is as follows List any five advantages of cycle counting Cars require a lot of space in cities. What evidence from the passage best supports this conclusion? During 2020, Inez (a single taxpayer) had the following transactions involving capital assets: Gain on the sale of unimproved land (held as an investment for 3 years) $6,000 Loss on the sale of a camper (purchased 2 years ago and used for family vacations) (5,000) Gain on the sale of ADM stock (purchased 9 months ago as an investment) 2,450 Gain on the sale of a fishing boat and trailer (acquired 18 months ago at an auction and used for recreational purposes) 1,000 Overall, Inez has a long-term capital gain of $ 6,000 and a short-term capital gain of $ 2,450 . Required:a. If Inez has taxable income (including the property transactions) of $188,450, what is the income tax regarding these transactions? Her marginal tax rate is 32%. b. If Inez has taxable income (including the property transactions) of $32,250, what is the income tax regarding these transactions? Her marginal tax rate is 12%. Lesson Steps:Step 1: Look at the video click on the link below (Links to an external site.) The Story of Silk Roads (Links to an external site.) Step 2: Now that you have seen the video answer questions below1. Who was powerful in ancient China and how did they display that power?2. What do these choices reveal about the values of Asian civilization? 3. How is Japan a land of rituals and why do they need these rituals?4. How do rituals affect your cultural world?Step 3: Open your textbook, Page 184 Chapter 7 Unit 3.1Title:Main Idea:Sub Titles:1.)2.)Key Vocabulary: (Define)1.)2.)Names & Places: (Define)1.)Review & Access: Answer1. What continents were connected by the Silk Roads?2. What impact did the Silk Roads had on Chinas economy A hypothesis of the significance of different slope elements for human activities 2x + y = 2y = 2x 1