Question

Give any two ways in which biodegradable substances would affect the environment.

Answer 1

Biodegradable substances affect the environment by:

• The biodegradable substances such as tree leaves, plant parts, and kitchen wastes can be used as humus after composting. This will enhance the soil fertility.
• The biodegradable substances mainly contain carbon. These substances after decomposition release that carbon back into the atmosphere.

Answer 2

• During decomposition process of biodegradable substances foul smell and some harmful gases are released which make problem for the nearby living person.
• During decomposition it provide a breeding ground for mosquitoes, insects and microbes responsible for diseases like cholera, diarrhoea, etc.