Answer: B
Explanation:
Thats what the teacher told me
Answer:
you already got the answer so ima just type a answer
Explanation:
Nitrogen,<span>The atmosphere is composed of ~78% nitrogen and ~21% oxygen, with small amounts of other gases. The bulk composition of the earth by weight is mostly, iron, oxygen, silicon and magnesium, in that order, with all the other elements making up only about 5% of the earth's weight.</span>
The right ventricle is deoxygenated. It is responsible for the pumping of the deoxygenated from the heart to the lungs.
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Carbon does not stay still in the Earth dynamic. When it is in the atmosphere, carbon is attached to oxygen, changing in dioxide. The carbon dioxide is used by the plants and return to the earth when it dies. The fossil fuels, then, are used by industry and vehicles, what send carbon to the atmosphere and restarts the process.
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