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BIO 1115 > Chapter 4 > Flashcards

Chapter 4 Flashcards

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Biology 101 flashcards
1
Q

What is albedo?

A

reflectivity of a planet

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2
Q

What is earth losing energy equal to?

A

rate at which it is receiving energy from the sun

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3
Q

What is the atmosphere opaque to?

A

infrared photons and all of them are absorbed by the atmosphere

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4
Q

What direction are photons emitted by the atmosphere?

A

upward direction to space and carry energy away from earth

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5
Q

What happens to photons emitted downwards?

A

they are absorbed by the surface

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6
Q

Are photons emitted by the atmosphere visible?

A

no, but they still carry energy

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7
Q

What is the greenhouse effect?

A

heating of the surface by the atmosphere

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8
Q

What is the surface temp determined by?

A

layers in atmosphere
solar constant
albedo

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9
Q

What do greenhouse gases absorb?

A

infrared photons

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10
Q

What is the number of layers equivalent to?

A

amount of greenhouse gases in the atmosphere

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11
Q

What happens when there is an increase in greenhouse gases?

A

increase in number of layers and warming climate

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12
Q

What is the temp of our climate set by?

A

requirement that energy in and energy out balance

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13
Q

Does the climate produce energy balance for earth?

A

yes

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14
Q

What is the Solar constant (S)?

A

intensity of sunlight at planets orbit

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15
Q

What are the characteristics of the sun hitting the earth at the equator?

A

more direction sunlight, warmer, closest to sun, more solar energy

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16
Q

What are the characteristics of the suns rays at the poles?

A

rays miss the poles that is why they are the coldest, least amount of energy

17
Q

What does the variation in solar energy with surface orientation in local temp relate to?

A

sun angle because the earth is rotating and the sun gets more direct throughout the day (depends on time)

18
Q

When are the warmest temps?

A

3-5 pm

19
Q

What are the levels of the atmosphere?

A

Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere

20
Q

What is the atmosphere composed of?

A

nitrogen, oxygen, argon, CO2, methane, water vapor, nitrous oxide

20
Q

What happens to the temperature in the atmosphere?

A

gets warmer in the stratosphere, but colder everywhere else

21
Q

How many km is it to the end of the thermosphere?

A

600 km

22
Q

What is earth’s diameter?

A

12742 km

23
Q

What is earth’s distance to sun?

A

149.6 million km

24
Q

Where are clouds?

A

troposphere and some in ozone layer

25
Q

Where do airplanes fly?

A

lower stratosphere

26
Q

Where are satellites?

A

northern edge of thermosphere

27
Q

What is tropopause?

A

natural boundary between troposphere and stratosphere

BIO 1115 (6 decks)

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