Air Pollution - Form 1 (Group A)

What is air pollution?

• • The presence of harmful substances in the air.

• • The increase in oxygen levels in the air.

• • The presence of water vapor in the air.

• • The decrease in nitrogen levels in the air.

Which of the following is a common source of air pollution?

• • A) Plant photosynthesis

• • B) Car exhaust

• • C) Rainfall

• • D) Wind blowing

What gas is primarily responsible for global warming and is also considered an air pollutant?

• • A) Oxygen (O₂)

• • B) Carbon Dioxide (CO₂)

• • C) Nitrogen (N₂)

• • D) Helium (He)

Which of these is a harmful effect of air pollution on human health?

• • A) Improved lung function

• • B) Reduced visibility

• • C) Respiratory diseases

• • D) Enhanced plant growth

What is the name of the harmful particles that are small enough to be inhaled into the lungs?

• • A) Ozone particles

• • B) Water droplets

• • C) Particulate matter (PM)

• • D) Dust mites

Which of the following pollutants contributes to the formation of acid rain?

• • A) Sulfur Dioxide (SO₂)

• • B) Methane (CH₄)

• • C) Oxygen (O₂)

• • D) Nitrogen (N₂)

How can trees help reduce air pollution?

• • A) By absorbing harmful gases

• • B) By releasing more oxygen at night

• • C) By producing more carbon dioxide

• • D) By trapping water in the atmosphere

Which of the following is a natural source of air pollution?

• • A) Volcanic eruptions

• • B) Automobile emissions

• • C) Industrial waste

• • D) Burning of fossil fuels

What is smog, and how is it formed?

• • A) A thick fog formed by water vapor

• • B) A cloud formed by high-altitude dust

• • C) A mixture of smoke and fog, often formed by pollutants

• • D) A type of cloud formed in the mountains

What is one way individuals can help reduce air pollution?

• • A) Using public transportation instead of personal vehicles

• • B) Increasing the use of plastic bags

• • C) Cutting down trees in urban areas

• • D) Burning waste materials openly