Question

Ozone, ketones and sulphur oxides are examples of ______.

Options

• Primary Pollutants

• Direct Pollutants

• Secondary Pollutants

• Natural Pollutants

Answer 1

Ozone, ketones and sulphur oxides are examples of Secondary Pollutants.

Explanation:

Secondary pollutants are formed when primary pollutants undergo chemical reactions in the atmosphere. For example, ozone is created when pollutants like nitrogen oxides and volatile organic compounds react with sunlight. Similarly, sulfur oxides and ketones can form through atmospheric chemical processes, making them secondary pollutants.