Give any two ways in which bio-degradable substances would affect the environment.

Dear Student

Two ways in which bio-degradable substances would affect the environment are:
(i) During decomposition of the substances lot of foul smell spreads in the surrounding areas.
(ii) The place where these bio-degradable substance are present with some moisture becomes breeding ground for insects like mosquitoes, housefly which are vectors in carrying parasites that cause different diseases.

Thanks