Earth's Atmosphere Layers and Spheres

Where you will find the ozone layer.

• stratosphere
• thermosphere
• exosphere
• mesosphere

Where weather occurs.

• stratosphere
• thermosphere
• troposphere
• mesosphere

Where we live.

• stratosphere
• thermosphere
• troposphere
• mesosphere

The two most common gases in the atmosphere.

• Nitrogen and Oxygen
• Oxygen and trace gases
• Carbon Dioxide and Nitrogen
• Nitrogen and trace gases

What is the function of the ozone layer?

• to allow UV rays to get to Earth
• to block UV rays from getting to Earth
• To keep oxygen in
• to allow meteors to get to Earth

The hottest layer.

• troposphere
• thermosphere
• exosphere
• mesosphere

Which phenomenon can be seen only in the ionosphere?

• ozone layer
• Aurora Borealis
• Highlands
• water vapor

This is the layer where airplanes fly.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere

What happens to the density (thickness)/air pressure of the air as you increase in altitude?

• density increases
• density decreases
• density stays the same
• density disappears

This is the layer where meteors, or shooting stars, burn up.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere