Construction of the Atmosphere Flashcards

1
Q

What is the most abundant substance in the earth’s atmosphere?

A

Nitrogen

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2
Q

At what altitude is ozone primarily concentrated?

A

Between 33 000ft and 165 000ft being most concentrated around 80 000ft

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3
Q

Which of the following are the main greenhouse gasses in the earth’s atmosphere?

A

Carbon dioxide and Water vapour

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4
Q

What is the temperature at the Tropopause?

A

-56C

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5
Q

What is considered to be the average height of the Tropopause?

A

36 000ft

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6
Q

What are the 3 main properties that describe the atmosphere?

A

Mobility, Expansion and Compression.

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7
Q

What altitude would you need to be at to be above 50% of the atmosphere?

A

18 000ft

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8
Q

It is possible to have completely saturated air and not have visible moisture (ie clouds).

A

True

Condensation Nuclei is required

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9
Q

The amount of water vapour in the air compared to that which the air can actually hold expressed as a percentage is called __________.

A

Relative Humidity

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10
Q

What is the composition of the atmosphere?

A

78% Nitrogen
21% Oxygen
1% Argon

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11
Q

What are the 4 main “spheres” of the Earth’s atmosphere?

A

Troposphere, Stratosphere, Mesosphere, and Thermosphere.

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12
Q

Where is the Jet Stream found?

A

Near the Tropopause

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13
Q

Which layer of the atmosphere contains the Ozone Layer?

A

Stratosphere

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14
Q

What is the thickness of the ozone layer over the poles and equator?

A

Thicker over the poles.
Thinner over the equator.

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15
Q

What layer do most of the weather occur in?

A

Troposphere

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16
Q

What are each of the names of the tops of the “spheres”?

A

Tropopause, Stratopause, and Mesopause.