The Atmosphere

The atmosphere is held in its place due to the ___________of the earth.

Weather phenomena take place in the ______________

The layer of the atmosphere which is considered safe to fly aero planes is __________

The _________ layer saves us from harmful ultraviolet rays.

The ___________ reflects radio waves back to the earth.

This is the gas the facilitates photosynthesis:

• Hydrogen

• carbon di oxide

• ozone

• Nitrogen

The lowest layer of the atmosphere is the

• Thermosphere

• Ionosphere

• troposphere

• stratosphere

The ozone layer exits in the

• Troposphere

• stratosphere

• mesosphere

• thermosphere

Meteors burn out due to friction of the atmosphere in this

• Exosphere

• mesosphere

• ionosphere

• troposphere

Temperature increases rapidly in the

• Mesosphere

• stratosphere

• thermosphere

• exosphere