Which of the following is/are correct ?

A. Various components of eco system are independent

B. Substances that cannot be broken down by biological processes are called biodegradable like plastics

C. Disposable cups and plates are biodegradable substances

D. It is better to use paper bags than polythene bags

Choose the correct answer from the options given below :

D only

The correct answer is option (3) : D only

A. Various components of eco system are independent. Incorrect. Components of an ecosystem are interdependent, not independent.

B. Substances that cannot be broken down by biological processes are called biodegradable like plastics. Incorrect. Substances that cannot be broken down are non-biodegradable, not biodegradable (plastics are non-biodegradable).

C. Disposable cups and plates are biodegradable substances. Incorrect.While some modern versions are made of paper or leaves, the term "disposable" usually refers to plastic, styrofoam (polystyrene), or plastic-coated paper, which are non-biodegradable and harmful to the environment.

D. It is better to use paper bags than polythene bags. Correct. Paper bags are more environmentally friendly than polythene bags.

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