The abiotic environment consists of non-living things. So, rocks, temperature and water are part of the abiotic environment.
A gene pool changes throughout evolution this could be natural selection, genetic drift or a mutation. A gene pool does this to adapt with the needs of the environment it is in
the correct answer you are looking for would be letter B. formation of geological layers
hope this helps :)
Answer:
greenhouse gas most responsible for global warming
Explanation: