Atmosphere Section 1-3

This gas makes up 78% of the atmosphere

• oxygen
• nitrogen
• ozone
• carbon dioxide

Which layer is the outermost layer?

• troposphere
• thermosphere
• exosphere
• mesosphere

Where you will find the ozone layer.

• stratosphere
• thermosphere
• exosphere
• mesosphere

Where we live.

• stratosphere
• thermosphere
• troposphere
• mesosphere

The coldest layer.

• troposphere
• thermosphere
• exosphere
• mesosphere

The hottest layer.

• troposphere
• thermosphere
• exosphere
• mesosphere

The most common gas in the atmosphere.

• Nitrogen
• Oxygen
• Carbon Dioxide
• Trace gases

As you go higher in the troposphere, the temperature _______________.

• decreases
• increases
• stays the same
• gets very hot

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

This is the layer where most commercial jet airliners fly.

• Troposphere
• Stratosphere
• Mesosphere
• Thermosphere