I say D, because there are certain states that have national parks and a large tree area.
I think Oxygen is the best answer.
Therefore, it is called a solvent, because it <span>is the one doing the dissolving.
The opposite - </span>a substance being dissolved is called a solute.
Answer: B: Mutation increase variety in a population.
Explanation:Mutations are changes to an organism's DNA and are an important driver of diversity in populations. Species evolve because of the accumulation of mutations that occur over time. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.
B. Heart, because the heart circulates blood throughout your body.
