B is forsure the right answer !!!!
There are a lot of forest management practice that cause harm to the forest ecosystems. On of the most harmful is Clearcutting. Also known as clearfelling, in this forestry almost or all of the trees are cut down. It is synonymous to deforestation. It destroys natural habitats.
The answer is B. Genetic drift greatly affects small populations, but large populations can recover.
I would say A) Short-term. Unless the earthquake is extremely powerful it would not be classified in the other three categories, so most earthquakes would be short-term
