When oil and petrol spread over the water surface, which one of the following occurs?

جب تیل اور پٹرول پانی کی سطح پر پھیلتا ہے تو ، مندرجہ ذیل میں سے کون سا ہوتا ہے؟

Sunlight penetration and oxygen mixing are prevented.

Aquatic plants grow better.

Fish population increases.

None of these

Oil and petrol form a thin layer on the water surface, blocking sunlight from reaching underwater plants.

This layer also restricts the mixing of oxygen from the air into the water, harming aquatic life.