Question

19.
What is biodegradable substances?describe two way in which non biodegradable substances
affect our environment​

Answer 1

Answer:

Biodegradable substances include food,scraps,cotton,wool,wood,human and animal waste,manufactured products based on natural materials such as paper,and vegetable-oil based soaps.

Non bio degradable substances that affect environment ..

1.They cause pollution.

2.They also kill useful microorganism.