Greenhouse Effects & Global Warming Flashcards

1
Q

Explain the greenhouse effect

A

Heat from the sun getsbtrapped in the earth’s atmosphere and leaves by greenhouse gases

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2
Q

What are green house gases?

A

Gases in the earth’s atmosphere that trap heat and allow sunlight to pass through the earth’s atmosphere and prevent much heat from leaving

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3
Q

Name the main greenhouse gases

A

Water vapor, carbom dioxide, methane gas, ozone, nitrous oxide and CFC’s

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4
Q

What are sources of water vapour?

A

Boiling of liquid, evaporation from bodies

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5
Q

Name 2 sources of carbon dioxide

A

Fossil fuel use, land use

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6
Q

Give 2 source of Ozone

A

Fossil fuels, evaporation of paints

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7
Q

Name 2 sources of Methane gas

A

Agriculture, fossil fuels

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8
Q

What are 2 sources of Nitrous oxide?

A

Oragnic fertilizers, fuel combustion

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9
Q

Give 2 sourcrs of CFC’S

A

Refrigerators, air conditioners

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10
Q

Which greenhouse gas is the most important

A

Carbon dioxide

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11
Q

Explain the cycle of caron dioxide in the enivronment

A

CO2 in the carbon environment gets absorbed by growing plants, marine life and in the soil then CO2 is released by decaying plants, burning fuels and from the soil

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12
Q

What does the term Anthropogenic mean?

A

Activities of humans

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13
Q

The Earth absorbs energy from the _____ in the form of solar radiation

A

Ozone

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14
Q

About 30% of incoming solar is _____ back into space

A

Reflected light

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15
Q

__________ is the mixture of gases that surround the earth

A

Greenhouse gases

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16
Q

T/F
Some solarnrsdiation is reflected by the earth & atmosphere

A

True

17
Q

T/F
Two greenhoude gases are oxygen anf nitrogren

A

True

18
Q

T/F
Without the greenhouse effect, tempersture on Earth would be too cold for life

A

True

19
Q

T/F
Global warming does not change the weather and climate of an area

A

False

20
Q

Define carbon footprint

A

Refers to the amount of carbon dioxide produced by human activity

21
Q

What are 3 ways to decrease CO2

A

Lights turned off, electric bus, wind power

22
Q

Give 3 ways that increase CO2

A

Fossil fuel, fire, petrol car emissions