Air Quality and Wind Dynamics

The video tutorial explores the movement of clouds due to wind and delves into the nature of air, its properties, and its importance. It covers the types of air movements like wind, breeze, and storm, and highlights the uses and health benefits of air. The tutorial also addresses air pollution and suggests preventive measures to maintain a clean environment.

What causes clouds to move in the sky?

• The heat from the sun

• The gravitational pull

• The blowing of wind

• The rotation of the Earth

Which gas makes up the largest percentage of Earth's atmosphere?

• Hydrogen

• Oxygen

• Carbon Dioxide

• Nitrogen

How can we demonstrate that air has weight?

• By observing a kite flying

• By watching clouds move

• By weighing a balloon filled with air

• By feeling the wind on our face

What happens to a candle when it is covered with a glass tumbler?

• It melts faster

• It goes off

• It burns brighter

• It changes color

What is a gentle wind called?

• Breeze

• Hurricane

• Gale

• Storm

Which activity is NOT possible without wind?

• Sailing boats

• Kite flying

• Parachute gliding

• Swimming

Why is fresh air important for health?

• It improves eyesight

• It strengthens bones

• It helps in digestion

• It prevents breathing illnesses

Which of the following is a way to reduce air pollution?

• Burning more waste

• Planting more trees

• Using more private vehicles

• Building more factories

What is a major source of air pollution from vehicles?

• Heat

• Smoke

• Vibrations

• Noise

What should be done to factories to help reduce air pollution?

• Build them in city centers

• Increase their production

• Construct them outside the city

• Reduce their size