Which of the following is non-biodegradable?

Explanation:

Plastic is a non-biodegradable material, meaning it does not decompose naturally through the action of microorganisms. As a result, plastic persists in the environment for hundreds to thousands of years, contributing significantly to pollution and environmental challenges.

In contrast, paper, cotton cloth, and wood are biodegradable materials. They can be broken down by natural processes involving microorganisms, returning to the ecosystem without causing long-term environmental harm.

Understanding the distinction between biodegradable and non-biodegradable materials is crucial for effective waste management and environmental conservation. Reducing the use of non-biodegradable materials like plastic and opting for biodegradable alternatives can significantly mitigate environmental pollution.

The correct answer is a) Plastic.