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What do we call the air and gasses that surround the earth?

• Atmosphere
• Troposphere
• Mesospherre
• Thermosphere

What part of our atmosphere is where the ozone layer is?

• Stratosphere
• Troposphere
• Mesosphere
• Thermosphere

What is the part of our atmosphere that protects us from comets because it acts like a shield.  It  is also very cold.  There are actually ice particles in the air.

• Atmosphere
• Stratosphere
• Mesosphere
• Thermosphere

In which part of the atmosphere will we find a tree growing?

• Thermosphere
• Stratosphere
• Mesosphere
• Troposphere

What part of our atmosphere is the coldest?

• Mesosphere
• Troposphere
• Thermosphere
• Stratosphere

The ozone layer is the part of the Stratosphere that protects from ultra violet rays from the _____________.

• moon
• stars
• sun
• planets

What part of the earth's atmosphere contains satellites that send meteorologists information about the weather?

• Troposphere
• Mesosphere
• Thermosphere
• Stratosphere

Which gas is most abundant in the atmosphere? (click to enlarge picture)

• oxygen

• nitrogen

• water vapor

• argon

A mixture of gases that surrounds the Earth like a blanket.

• atmosphere

• troposphere

• ozone

• nitrogen

Gas in the atmosphere that protects the Earth from the Sun's rays

• atmosphere

• troposphere

• ozone

• nitrogen