Which statements describe long-term environmental changes

Deforestation, Extinction, pollution and more.

Explanation:

If something happens over a long period of time, like deforestation for example. Deforestation is when people cut down trees in a forest and leave a huge area of dirt to make way for roads, farms, or anything else. In order to get the forest back, it would take years and years for it to become a forest again.

i believe the answer would be b. hope it : )