Fill in the blanks: Major sources of air pollution include natural sources like ___ and man-made sources such as ___.

Ash; exhaust from vehicles

True or False: Sulphur dioxide contributes to the formation of smog and can cause severe respiratory issues.

True

What is the process called when harmful substances enter the food chain and accumulate in organisms at each trophic level?

Biomagnification

Fill in the blanks: Water pollution can result from sources such as household detergents, sewage, and ___ spills.

Oil

True or False: Ozone depletion does not affect human health.

False. Ozone depletion allows more UV rays to penetrate the Earth's surface, leading to health issues such as sunburns and skin cancer.

What is the significance of celebrating International Ozone Day on September 16?

International Ozone Day raises awareness about ozone depletion and its effects on health and the environment.

What are the effects of noise pollution on human health?

Noise pollution can cause hearing damage, high blood pressure, persistent headaches, decreased productivity, and sleep disturbances.

Fill in the blanks: The Swachh Bharat Abhiyan aims to convert insanitary toilets into ___ toilets.

Pour-flush

Fill in the blank: Biodegradable pollutants can be decomposed by the activity of ___.

Microorganisms