Layers of the atmosphere and pressure last half or semester Flashcards

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1
Q

What is the atmosphere?

A

The layers of gases that surround Earth.

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2
Q

How many major layers are there in the atmosphere?

A

5

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3
Q

How many major layers are there in the atmosphere?

A

5

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4
Q

What are the boundaries between each layer called?

A

“Pauses”

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5
Q

What would the boundary between the troposphere and the stratosphere be called?

A

Tropopause - you take the lowest layer as the first prefix.

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6
Q

The atmosphere does not float off into space because of _____?

A

Gravity.

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7
Q

Why is the atmosphere helpful?

A

It allows us to breath and it holds in heat.

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8
Q

What does the atmosphere protect us from?

A

Harmful solar radiation, solar winds, and meteors.

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9
Q

What is the atmosphere made of?

A

78% Nitrogen
21% Oxygen
1% All other gases

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10
Q

True or false - Parcles of air can vary greatly.

A

True.

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11
Q

What will affect the composition of the atmosphere?

A

Addition of water vapor.

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12
Q

What are the layers of the atmosphere defined by?

A

Temperature.

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13
Q

What is the closest layer to the surface?

A

Troposphere - 0-10 km

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14
Q

What does the troposphere contain?

A

Our water.

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15
Q

Where do planes fly in the troposphere?

A

In the upper level.

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16
Q

Temperature decreases with ______?

A

Altitude.

17
Q

Pressure decreases with ______?

A

Altitude.

18
Q

What does the tropopause separate?

A

The troposphere and the layer above it.

19
Q

What is air pressure?

A

Weight of the atmosphere pressing down on the surface of the Earth.

20
Q

What is air pressure measured in?

A

Millibar/PSI/atm

21
Q

Where will you experience the greatest atmospheric pressure?

A

Closest to Earths surface.