Air and Atmosphere Quiz

What is air made up of?

• Light

• Solid

• Matter

• Water

What percentage of air is nitrogen?

• 78%

• 10%

• 50%

• 21%

Which gas do living things take in during respiration?

• Nitrogen

• Oxygen

• Carbon Dioxide

• Hydrogen

What do plants need to make food?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Water

What is the layer of air that surrounds the Earth called?

• Stratosphere

• Atmosphere

• Troposphere

• Exosphere

Which layer of the atmosphere is closest to the Earth's surface?

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

What layer contains the ozone layer?

• Exosphere

• Mesosphere

• Stratosphere

• Troposphere

Where do meteors burn up in the atmosphere?

• Mesosphere

• Thermosphere

• Troposphere

• Stratosphere

What is the hottest layer of the atmosphere?

• Troposphere

• Exosphere

• Stratosphere

• Thermosphere

What happens to objects in the exosphere when sunlight shines on them?

• They disappear

• They heat up quickly

• They stay the same

• They get cold