Earth's Atmosphere

The mixture of gases that surrounds Earth is the

• atmosphere

• stratosphere

• cryosphere

• toposphere

Tags

NGSS.MS-ESS2-5

The atmosphere is mostly made up of oxygen and

• carbon

• nitrogen

• helium

• hydrogren

The measure of the force with which air molecules push on an area of a surface is known as

• air pressure

• atmospheric pressure

• hydraulic pressure

• air power

As altitude increases, air pressure

• increases

• decreases

There are ______ layers in the atmosphere.

• 2

• 3

• 4

• 5

The uppermost layer of the atmosphere is the

• stratosphere

• thermosphere

• troposphere

• mesosphere

The layer between the thermosphere and the stratosphere is the

• stratosphere

• thermosphere

• troposphere

• mesosphere

The layer between the mesosphere and the troposphere is the

• stratosphere

• thermosphere

• troposphere

• mesosphere

The lowest layer of the atmosphere is the

• stratosphere

• thermosphere

• troposphere

• mesosphere

Select two ways the atmosphere protects life on Earth.

• Absorbing or reflecting harmful radiation

• Maintaining the right temperature range

• Allowing solar rays to penetrate through to Earth's surface

• By absorbing oxygen from the air