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3 years ago

Silicon and _______ stay in the the outer cells pls tell me fast

Geography

1 answer:

mario62 [17]3 years ago

5 0

Answer:

Oxygen

Explanation:

The earth has been divided into three major categories crust, mantle, and core which are further segregated into sub-parts. Since the crust is the outermost layer of the shell, the outer crust of the earth consists of a combination of silicon and oxygen in the majority followed by some percentage of other metals as well. The percentage of Oxygen includes nearly 50% i.e. 46.6% followed by 27.7% of Silicon and the other 25.3 % includes aluminum, iron, sodium, magnesium, etc. Thus, 'oxygen' is the correct answer.

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3 years ago

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Answer:

The explanation is given below

Explanation:

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3 years ago

What environmental impacts are caused by both surface mining and underground mining? Select the two correct answers.

UkoKoshka [18]

Answer:

B. local water contamination

D. destruction of ecosystems

Explanation:

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The waters get heavily polluted with toxic chemicals pretty much always ad everywhere where there is mining. The main reason for this is that the nus-products from the mining are released into the waters. This causes high level pollution of the waters, thus making it not good for anything, and the aquatic life in the waters dies out rapidly.

The fact that the waters are heavily polluted means that everything that comes in touch with them becomes heavily polluted as well. Also, apart from releasing chemicals in the waters, the mining requires space, so the area is cleared out, and after that lot of toxic material is disposed on it. The majority of the plants can sustain that, so they die out, and since they are the basis of the ecosystems, the animals die out as well.

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3 years ago

The Sahara is a hot desert yet people grow crops in some regions of this desert. What helps them to grow crops here?

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3 years ago

Norm

lara [203]

Answer:

1) norm

2)household

3)chain migration

4)adopted children

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3 years ago

Silicon and _______ stay in the the outer cells pls tell me fast​

Silicon and _______ stay in the the outer cells pls tell me fast