Correct Answer - Option 4 : None of the above
Explanation:
Human activities that affect the environment:
The growing world affect the environment around us in terms of both the atmosphere and the ground.
- The Ozone layer & its depletion
- The management of garbage we produce
We generate a lot of material that is thrown away. Like plastics, glasses, metals, organic waste, chemical waste etc.
All these waste are categorized in -
-
Biodegradable - Substances that are broken down by biological processes (with the help of some bacterias) are said to be biodegradable. Ex- paper, food products, cotton, cow dung, organic waste etc.
-
Non- Biodegradable - Substances that are not broken down into simpler molecules are said to be non-biodegradable. These substances may be inert and simply persist in the environment for a long time or may harm the various members of the eco-system. Ex- Pesticides like DDT (dichlorodiphenyltrichloroethane), toxic chemicals, metals, polythene, few fertilizers, dyes, rubber goods, glass, pharmaceuticals waste etc.
Plastic - Non- Biodegradable
Polythene - Non- Biodegradable
Glass - Non- Biodegradable
Hence, the correct option for biodegradable waste is None of these.
