Unit 6 Review

This gas makes up 21% of the atmosphere

• ozone
• oxygen
• nitrogen
• water vapor

 Which of the following activities contributes the most to carbon emissions globally?

• Deforestation
• Agriculture
• Burning fossil fuels
• Respiration

What does this diagram illustrate?

• Ozone Layer
• The Greenhouse Effect
• Ultraviolet Radiation
• Layers of the atmosphere

Where you will find the ozone layer.

• stratosphere
• thermosphere
• exosphere
• mesosphere

Where weather occurs.

• 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 (78%).

• Nitrogen
• Oxygen
• Carbon Dioxide
• Trace gases

Which order is correct from the earth to space?

• thermosphere
   troposphere
   exosphere
  mesosphere
  stratosphere
   ionosphere
• thermosphere
   troposphere
   stratosphere
   exosphere
  mesosphere
   ionosphere
• exosphere
  ionosphere
  thermosphere
  mesosphere
   stratosphere
  troposphere
• troposphere
  thermosphere
   troposphere
   stratosphere
   exosphere
  mesosphere

What does the earth's atmosphere do?

• help to regulate the temperature on Earth
• Help UV rays to reach the Earth's surface
• Creates meteors in the sky
• Keep ocean waters cold