State in brief two ways in which non- biodegradable substances would affect the environment. List two methods of safe disposal of the non-biodegrable waste.
The non-biodegradable substances affect the environment in the following ways:
(i) They persist in the environment for a long time and thus damge the environment.
(ii) They cause land and water pollution. Methods of safe disposal of the non- biodegradable waste:
(iii) By underground dumping.
(iv) By sending into factories for recycling.