Question

building a dam causes the water pollution how​

Answer 1

Explanation:

Dams are expected to affect water quality and quantity for millions of downstream users. A few ways that dams harm water supply include: By trapping river-borne nutrients, dams can lead to the growth of toxic algaes. ... Dams also lead to riverbed deepening for tens or even hundreds of kilometers below the reservoir

Answer 2

Answer:

Dams are expected to affect water quality and quantity for millions of downstream users. A few ways that dams harm water supply includes-

by trapping river born nutrients, dams can lead to the growth of toxic algaes.

Explanation: