Earth's Atmosphere

The mesosphere helps protect the Earth from:

• Dangerous cosmic rays.

• The impact of meteors.

• The effect of Solar Flares.

• Harmful weather

What is the molecular formula for ozone?

• O

• O₂

• O₃

• O_z

The energy contained in a wave that has a small wavelength compared to a wave that has a long wavelength is:

• greater than the energy of the long wavelength

• smaller than the energy of the long wavelength

• same as the energy of the long wavelength

The source of energy that drives air movement in the atmosphere is the:

• Sun

• Oceans

• Moon

• Ionosphere

What does the temperature do as you go higher up in the troposphere?

• decrease

• increase

• stays constant

How does the ozone layer benefit living things on the Earth.

• We need it to breathe.

• It keeps the Earth cool.

• It is a source of rain.

• It protects the Earth from ultraviolet rays.

Jet planes fly in this layer to avoid the weather.

• troposphere

• thermosphere

• stratosphere

• mesosphere

The atmospheric layer that is the coldest is the

• mesosphere

• stratosphere

• thermosphere

• troposphere

The air we breathe is made mostly of:

• argon

• carbon dioxide

• nitrogen

• oxygen

Which layer of the Earth's atmosphere does most weather occur?

• mesosphere

• stratosphere

• thermosphere

• troposphere