Earth's Atmosphere

In which atmospheric layer can you find most of the air and almost all of the water vapor?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

Tags

NGSS.MS-ESS2-4

Which of these belongs to the stratosphere?

• The Aurora Borealis (Northern Lights)

• Clouds and Weather Patterns

• Ozone Layer

• Zero Gravity

The most abundant gas, ___________, accounts for over 3/4 of Earth's atmosphere.

Air pressure ____________ as you move from Earth's surface toward outer space.

• increases continually

• increases and decreases at different elevations

• decreases continually

• remains constant

As you move from Earth's surface toward outer space, temperature (1)_______ in the troposphere, (2)_______ in the stratosphere, (3)_______in the mesosphere, then (4)_______ in the thermosphere.

• (1) increases

  (2) decreases

  (3) increases

  (4) decreases

• (1) decreases

  (2) increases

  (3) decreases

  (4) increases

• (1) decreases

  (2) decreases

  (3) decreases

  (4) decreases

• (1) increases

  (2) increases

  (3) increases

  (4) increases

Which of the following terms describes water vapor in the atmosphere?

• dew

• fog

• clouds

• humidity

The actual amount of water vapor in the atmosphere, in grams per cubic meter, is...

• relative humidity

• discrete humidity

• absolute humidity

• volume humidity

The amount of water vapor in the atmosphere compared to its saturation point, expressed as a percentage, is...

• relative humidity

• saturation humidity

• absolute humidity

• the stickiness index

Tags

NGSS.MS-ESS2-4

Clouds typically form because humid air is moving ___________.

• over a cold surface

• upward

• downward

• from high to low pressure

Tags

NGSS.MS-ESS2-5

How is the saturation point affected by the temperature of an air mass?

• Cold air can hold more water than warm air, so the saturation point of cold air is higher

• Cold air can hold more water than warm air, so the saturation point of warm air is higher

• Warm air can hold more water than cold air, so the saturation point of cold air is higher

• Warm air can hold more water than cold air, so the saturation point of warm air is higher

Tags

NGSS.MS-ESS2-5