Earth Unit 3 Test Review

Which of the following gases is found in the smallest percentage in Earth's atmosphere?

• Oxygen

• Carbon dioxide

• Nitrogen

• Water vapor

Air pressure decreases as altitude increases.

• True

• False

Using the drop-down menus, match each atmospheric layer with the correct description.

• Contains the Ozone Layer

• Mesosphere:

• Contains charges particles

• Stratosphere:

• Contains all weather

• Troposphere:

• Meteors are visible as they burn up

• Thermosphere:

There is a clear boundary where Earth's atmosphere ends and space begins.

• True

• False

Which of the processes does not form clouds?

• Condensation around nuclei

• Colliding air masses forcing air upwards

• Warm air rising, expanding, and cooling

• Pollution from factories

In order for clouds to form, there must be tiny solid particles such as dust and salt suspended in the atmosphere.

• True

• False

Which of the following is not a type of cloud?

• Supercell

• Altocumulus

• Stratonimbus

• Cirrostratus

Hail is when large rounded balls of ice fall from clouds.

• True

• False

Climate of an area can be determined by observing the weather over several weeks.

• True

• False

What is the specific air temperature at which the water vapor will condense?

• Relative humidity

• Dew point

• Condensation point

• Cloud temperature