global warming- lqc 14b

Question 1

describe the greenhouse effect

Answer 1

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

Question 2

what characteristics must a greenhouse gas have

Answer 2

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

Question 3

Which processes release CO2 into the atmosphere?

Answer 3

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

Question 4

What characteristics must a greenhouse gas have?

Answer 4

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

Question 5

Which processes release methane into the atmosphere?

Answer 5

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