review atmosphere

Air pressure is greatest

• at a mountain base

• on a mountain top

• in the stratosphere

• in the ionosphere

In which layer of the atmosphere is the ozone layer found?

• troposphere

• stratosphere

• mesosphere

• thermosphere

In which layer are Meteors seen?

• Mesosphere

• Thermosphere

• Troposphere

• Exosphere

Which layer of the Atmosphere is closest to earth?

• Exosphere

• Mesosphere

• Stratosphere

• Troposphere

Troposphere

• the layer of the atmosphere extending from the top of the stratosphere to an altitude of about 50 miles (80 kilometers)

• the portion of the atmosphere which extends from the earth's surface, where all weather forms

• the second layer of the atmosphere above the troposphere where temperature changes very little

• the part of the earth's atmosphere that begins at about 50 miles (80 kilometers) above the earth's surface, extends to outer space

Tags

NGSS.MS-ESS2-5

In which layer are Meteors seen?

• Mesosphere

• Thermosphere

• Troposphere

• Exosphere

What are the two most common gases found throughout the atmospheric layers?

• carbon dioxide and oxygen
• ozone and water vapor
• nitrogen and oxygen
• carbon dioxide and nitrogen

Why is Earth's atmosphere important?

• It is beautiful.
• It prevents pollution from happening.
• Life on Mars could not exist without it.
• Life on Earth could not exist without it.

Tags

NGSS.MS-LS2-3

What is the percentage of oxygen in Earth's atmosphere?

• 1%
• 21%
• 78%
• 90%

What is the percentage of nitrogen in Earth's atmosphere?

• 1%
• 21%
• 78%
• 90%