global warming- lqc 14b Flashcards

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1
Q

describe the greenhouse effect

A

greenhouse gases (CO2 and sometimes methane) accumulate and absorb infrared radiation. the radiation is reflected from the earths surface and the temperature of the earths atmosphere and surface

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2
Q

what characteristics must a greenhouse gas have

A

Long lifespan, ability to absorb infrared radiation, abundance in the atmosphere

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3
Q

Which processes release CO2 into the atmosphere?

A

Combustion of fossil fuels
Deforestation – lower capacity to absorb CO2 in photosynthesis

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4
Q

What characteristics must a greenhouse gas have?

A

Long lifespan, ability to absorb infrared radiation, abundance in the atmosphere

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5
Q

Which processes release methane into the atmosphere?

A

Decay of organic matter in waterlogged conditions i.e. bogs and paddy/rice fields, decay of domestic waste in landfill sites, decomposition of animal matter, digestive systems of cattle, incomplete combustion of fossil fuels

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