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LuckyWell [14K]
3 years ago
10

List and briefly describe earths compositional layers

Biology
1 answer:
Semmy [17]3 years ago
6 0

Answer:

Compositional Layers

Layer Depth

Crust 0-100km silicates

Mantle 100-2900km iron and magnesium silicates

Core 2900-6370km metals

Hope this helps!!!

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Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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The correct answer would be that substance A is rice, and substance B is sugar.

For substance A to be filtered out, it means that A is a water-insoluble substance and for substance B to be recoverable by evaporating off the water, it means that B is water-soluble.

Thus, A can neither be sugar nor alcohol because neither can be recovered by filtration. Also, B can neither be coffee nor alcohol because they can not be recovered as residue through evaporation of water.

Therefore, the only correct answer is that substance A is rice, and substance B is sugar because rice can be filtered out from water while the water-soluble sugar can be recovered by evaporating the water.

More about separating mixtures here: brainly.com/question/2827008

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3 years ago
How do particles move between a cell and its outer environment?
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5 0
4 years ago
Several species of fish in the genus Astyanax occur only in the waters in completely dark underground caves. These blind cave fi
Sunny_sXe [5.5K]

Answer:

a vestigial structure

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Vestigial structures are a rudimentary (or even functionless) version of a body part, but they have important functions in a closely correlated or evolutionarily close species, an example of which is the presence of eyes in fish of the genus Astyanax. The existence of these vestigial structures is strong evidence that evolution occurs in organisms, since this structure, today without much apparent function, may in the past have been extremely important to the ancestors of that species.

7 0
3 years ago
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miskamm [114]

Answer: close ended

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In a job oriented interview both open and closed ended questions are asked to the job seeker. The open ended interview questions are generally very long answer type questions these questions allows the person to express. These questions are asked to learn about the personality and interests of the job seeker. The closed ended questions are the short questions and they are easy to answer and these can be answered in yes and no. These questions are asked and answered quickly. The chances of mistakes in these questions are more. The chances of misinterpretation of the question is always more in these questions. But these questions allow to get more information about the candidate as compared to the open ended questions as during the open ended question session the job seeker can manipulate the facts but in the case of close ended questions the asking tendency is rapid so no manipulation can occur.

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What is the name for the protein that forms the basic fibers of body tissue?
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I think it was called colagen, or something.
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