TOPIC: The challenge of natural hazards Flashcards

1
Q

some environmental impacts of climate change

A

forest fires
rising sea levels
desertification
tropical storms

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2
Q

some human impacts of climate change

A

lower crop yield
water supply affected

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3
Q

what is adaptation

A

adjusting to climate change

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4
Q

what is mitigation

A

action taken to reduce climate change

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5
Q

what are some examples of mitigation for climate change

A

carbon capture
planting trees
international agreements
alternate energy sources

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6
Q

what are some examples of adaptation for climate change

A

changing farming methods
managing water supply
reducing risk from sea level rise

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7
Q

what are 3 natural causes of climate change

A

orbital changes
solar activity
volcanic activity

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8
Q

what are the three types of orbital change

A

eccentricity
axial tilt
precession

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9
Q

how does eccentricity cause climate change

A

our orbit becomes elliptical, and when the earth is closer to the sun it makes the climate warmer

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10
Q

how does axial tilt cause climate change

A

it causes summers to be warmer and winters to be colder

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11
Q

how does precession cause climate change

A

every 26,000 years the earth wobbles, causing one hemisphere to receive hotter weather, and the other to receive colder

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12
Q

how do volcanoes cause climate change

A

the ash blocks the rays of the sun causing global cooling

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13
Q

how do sunspots cause climate change

A

during high sunspot activity, the climate can increase in temperature

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14
Q

evidence for continental drift.

A

same fossil types found in different continets

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15
Q

What is made at constructi ve plate margins

A

volcanoes,

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16
Q

what is a constructive plate margin

A

moving apart

17
Q

what is a destructive plate margin

A

moving together

18
Q

which plate always subducts at a destructive margin

A

oceanic

19
Q

what is made at a destructive margin

A

earthquake, explosive volcanoes

20
Q

what happens when two continental plates makes a destructive margin

A

fold mountains

21
Q

what is a conservative plate margin

A

two plates moving side by side

22
Q

what is made at a conservative plate boundary

A

earthquakes, if underwater causes tsunamis

23
Q

how are buildings made earthquake proof

A

automatic window shutters to stop falling glass

steel frames, built to sway

computer controlled weights on roof, to reduce movement

24
Q

what are the names of the 3 cells

A

hadel cell, ferrel cell, polar cell

25
Q

What pressure is made from rising air

A

low pressure

26
Q

which direction does wind flow

A

from areas of high pressure to low

27
Q

why is the equator warm and wet

A

because the rising moist air causes clouds to form

28
Q

why are the subtropics dry and hot

A

because the air is sinking, so clouds don’t form

29
Q

what causes wet weather in the uk

A

low pressure belt

30
Q

what sea temp is needed for tropical storms

A

26-27 degrees c

31
Q

what is a storm surge

A

the water brought onto land from the sea during a tropical storm

32
Q

is uk weather becoming more extreme

A

we cant prove it

33
Q

What is the name of the mud flows causes by volcanic eruptions

A

Lahars