Question

b. Things that make water unsafe for drinking ​

Answer 1

Answer:

Germs, Bacteria and impurities present in water due to certain reasons

Answer 2

Answer:

Water is unsafe when it contains germs, worms or toxics chemicals germs (tiny living things, too small to see from our naked eyes that causes many kinds of illness) and roundworms, cause many serious illnesses.

Hope this answer will helps you