Answer:
A.
Explanation:
The greatest risk environmentally with the unregulated harvesting, because it could endanger or terminate a species.
The answer is D, increasing genetic variation
Answer:
adaption radiation, coevolution
Explanation:
If photosynthesis stopped, plants would stop converting carbon dioxide -- an air pollutant -- to organic material. ... Even if all the plants on Earth were to die, people would remain resourceful -- especially if their lives depended on it.