The first one is the 3rd option and the 2nd one is also the 3rd option
Answer: Y goes to proteins.
Explanation:
Enzymes, which are a form of protein, are used by the cell to accelerate chemical reactions.
Answer:
In science, a variable is any item, factor, or condition that can be controlled or changed
Answer:
These are things that won't be going away. Natural gasses and fossil fuels will likely run out someday or become much harder to find. When you use these sources of energy, they won't be going away and therefore will be sustainable because we can always continue using them.
Does that make sense?
Explanation:
Answer:
option a
Explanation:
because When hydrogen is used to power a fuel cell, the only byproducts are water and heat—no pollutants or greenhouse gases are produced.
