Atmosphere Flashcards

1
Q

The atmosphere is…

A

A mixture of gases that surrounds the Earth.

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2
Q

The Earth’s percentages atmosphere is..

A

78% nitrogen
21% oxygen
1% other

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3
Q

Water is also found in the atmosphere in the form of a gas called

A

Water vapor

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4
Q

What happens to air pressure as elevation increases in the Earth’s atmosphere?

A

Air pressure decreases

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5
Q

Starting at the Earth’s surface what are the four main layers of the atmosphere?

A

Troposphere, stratosphere, mesosphere and thermosphere

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6
Q

What happens to the temperature in the troposphere?

A

Decreases

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7
Q

What happens to the temperature in the stratosphere and why

A

increases because of ozone layer

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8
Q

What happens to the temperature in the Mesosphere

A

decreases alot

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9
Q

What happens to the temperature in the thermosphere

A

increases a lot

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10
Q

What is the layer closest to the Earth’s surface ad the one we live in

A

Troposphere

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11
Q

What is the layer that contains the ozone layer which protects earth from harmful UV rays from the sun?

A

Stratosphere

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12
Q

What is the coldest layer of all four. This layer burns up many meteors due to friction.

A

Mesosphere

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13
Q

This layer has the highest temperature and lowest pressure

A

Thermosphere

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