Quiz on Earth's Atmosphere

What is the main reason we can live on Earth?

• The distance from the sun

• The presence of water

• The size of the planet

• The atmosphere

What is the function of the troposphere?

• It protects us from UV rays

• It is where satellites orbit

• It is where weather occurs

• It is the hottest layer

Which layer of the atmosphere contains the ozone layer?

• Stratosphere

• Troposphere

• Mesosphere

• Thermosphere

What happens to meteors in the mesosphere?

• They are captured by satellites

• They burn up

• They fall to the ground

• They create auroras

What is the temperature like in the thermosphere?

• Very cold

• Moderate

• Very hot

• Freezing

What is the exosphere primarily known for?

• Being the densest layer

• Being the layer where weather occurs

• Containing the most oxygen

• Where satellites orbit

Why is the atmosphere important for life on Earth?

• It provides food

• It provides air to breathe

• It gives us water

• It keeps us warm

What percentage of the air we breathe is oxygen?

• 50%

• 21%

• 78%

• 100%

What causes the blue color of the sky?

• The angle of the sun

• Scattering of sunlight by the atmosphere

• Reflection of the ocean

• The presence of clouds

What is the main characteristic of the stratosphere?

• It is where birds fly

• It contains the ozone layer

• It is where storms occur

• It is the coldest layer