Layers of the Atmosphere

We live in the __________________layer, a level of the atmosphere.

• Troposphere
• Stratosphere
• Mesosphere
• Exosphere

What absorbs ultraviolet rays in the atmosphere?

• troposphere
• stratosphere
• ozone layer

The coldest layer.

• troposphere
• thermosphere
• exosphere
• mesosphere

The hottest layer.

• troposphere
• thermosphere
• exosphere
• mesosphere

What are the two most common gases in the atmosphere?

• Nitrogen and oxygen

• Oxygen and carbon dioxide

• Carbon Dioxide and methane

• Nitrogen and carbon dioxide

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

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

Which of these layers is farthest from Earth?

• thermosphere
• stratosphere
• mesosphere
• exosphere

Why are some layers warmer than others?

• they get hotter the higher up you go
• some layers contain gases that can absorb the sun's energy
• some layers closer to the sun are hotter
• there is no wind in the upper atmosphere

Without the Greenhouse Effect the Earth would be

• warm 
• cold
• dead