soils Flashcards

1
Q

what are greenhouse gases

A

warming the earths surface and the air above it caused by gases in the air that trap energy from the usn

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2
Q

what are ice cores

A

cylinders of icedrilled out of an ice sheet or glacier

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3
Q

what is global warming

A

temperature levels increasing globally over the last 200 years

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4
Q

what is the greenhouse effect

A

suns solar energy penetrates the atmosphere, the surface warms up but cools down at the night, it releases heat in the air, some of it gets trapped by greenhouse gases, this keeps our earth average at 15’

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5
Q

what are the 3 main causesof climate chnage

A

1.carbon dioxide
2.methane
3.nirous oxide

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6
Q

whats an example of how carbon dioxide is creating climate change

A

burning fossil fuels like coal and oil energy+deforestation

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7
Q

whats an example of how methane is creating climate change

A

produced when fossil fuels are extracted from earth , main ingrediant of natural gas

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8
Q

whats an example of how nitrous oxide is creating climate change

A

artificial fertilizers are the biggest source, chemicals make soils more fertile, increase release of nitrous oxide into atmosphere

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9
Q

how are polar ice sheets causing sea levels to rise

A

global warming melts ice sheets+glaciers, flood and erosion occurs, this results in a lack of clean water

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10
Q

how to extreme weather events affect climate change

A

extreme weather events like droughts,floods, and heatwaves are becoming more popular eg flooding in spain

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11
Q

how is desertification effectinf climate chnage

A

global warming causes drought which leads into fertile land into a desert

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12
Q

how is a threat to wildlife effecting climate chnage

A

global warming is a threat to many species, the average rise in global temperature of 1.5’C could put 30% of species at risk of extinction

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13
Q

what is a solution for climate chnage

A

th Paris climate agreement-195 countries signed a contract for a plan to avoid climate chnage as much as possible

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