7) this is a technique used to distinguish between individuals of the same species using only samples of their dna.

this is from usa test prep

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:

answer///multiple alleles;