Earth's Atmosphere

What is the atmosphere

• layers of gases that surround Earth

• outer space

• where astronauts travel

Which layer of the atmosphere is closest to Earth?

• Exosphere

• Atmosphere

• Troposphere

What takes place in the Troposphere?

• Comets

• Weather

• Nothing

Which layer of the Earth's atmosphere does humans live?

• Troposphere

• Moon

• Exosphere

What type of gases make up the Earth's Atmosphere

• gases, nitrogen and water

• water, oxygen, water vapor

• nitrogen, oxygen, and other gases