Question

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

Answer 1

Biodegradable substances affect the environment in the following ways:

1. Biodegradable substances such as tree leaves, plant parts, and kitchen wastes can be used as humus after composting. This will enhance soil fertility.

2. The biodegradable substances mainly contain carbon. These substances after decomposition release that carbon back into the atmosphere.

3. They may produce foul smell during the decomposition process.

4. Waste decomposing in landfills produces harmful methane, a gas that’s 100-120 times more powerful than carbon dioxide at the time of emission.