Community: <span>a group of people living in the same place or having a particular characteristic in common.
Population: </span><span>all the inhabitants of a particular town, area, or country.</span>
Or they could have evolved to adapt to their environment. Because of these mutations, they’re more beneficial to their species and can survive.
Answer:
Light travels as a surface wave
Explanation:
The acidity is secretions produce by plant roots.