Ais a group of cell working together to perform a specific function

i'm pretty sure it's spores

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

is this a psat question, if so do not cheat try your best.