I believe The answer is B. Hope this Helps :)
I think it’s B too, They were very mean to the natives and stole their land by being violent
Answer:
Migration is the movement of individual organisms into, or out of, a population. ... Immigration is the movement of individuals into a population from other areas. This increases the population size and growth rate. Emigration is the movement of individuals out of a population.
Explanation:
A mountain is a single standing one such a Mount Fuji. A mountain range is a chain of mountains such as the Himalayas
The answer is A oil spills