Air Around Us Quiz

What is the major component of air?

• Oxygen
• Carbon dioxide
• Nitrogen
• Water vapor

What gas supports burning?

• Oxygen
• Carbon dioxide
• Nitrogen
• Water vapor

What is the purpose of a windmill?

• To generate electricity
• To pump water
• To grind grains
• To purify air

What happens to the air bubbles in water when it is heated?

• They disappear
• They increase in size
• They decrease in size
• They stay the same

What gas do aquatic animals use for respiration?

• Oxygen
• Carbon dioxide
• Nitrogen
• Water vapor

What is the purpose of the atmosphere?

• To provide oxygen for plants
• To protect the Earth from asteroids
• To regulate temperature
• To create wind

What is the composition of air?

• Nitrogen and oxygen
• Carbon dioxide and oxygen
• Nitrogen and carbon dioxide
• Oxygen and water vapor

What happens to the air in soil when water is added?

• It disappears
• It turns into water vapor
• It forms bubbles
• It becomes solid

What is the purpose of the long chimneys in factories?

• To release smoke into the air
• To prevent birds from entering
• To remove harmful smoke and gases
• To generate wind energy

What is the purpose of respiration in plants and animals?

• To produce oxygen
• To produce carbon dioxide
• To exchange gases with the atmosphere
• To release energy from food