Answer: Nitrogen
Explanation: just trust me
Using your reflexes can prevent you from getting hurt in the first place.
<span>During photosynthesis, plants use carbon dioxide and produce oxygen. During metabolism oxygen is used and carbon dioxide is a product. Humans impact the carbon cycle during the combustion of any type of fossil fuel, which may include oil, coal, or natural gas.</span>
As the phase changes occur, the freedom of motion of the particles increases.
I think that 3 is C and 2 is B