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global warming Flashcards

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1
Q

GREENHOUSE:

A

Is a glass house that people use for growing plants

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2
Q

The air in a greenhouse remains warm because it

A

traps heat thus can grow crops even during cold
season

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3
Q

A greenhouse is used for growing

A

plants in cooler climates.

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4
Q

A greenhouse allows the

A

short-wave
radiation to escape, but traps the long-wave radiation.

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5
Q

greenhouse gases absorb

A

terrestrial radiation, such as carbon dioxide, methane, CFCs and nitrous oxide

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6
Q

impact of Greenhouses on people

A
  1. loss of fertile agricultural land
  2. increased costs to protect cities
  3. the amount of arable land will be reduced
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7
Q

impact of Greenhouses on the environment

A
  1. low-lying areas become lagoons or a new coastline
  2. increase in beach erosion
  3. melting glaciers
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8
Q

how to reduce Greenhouse gases

A
  1. introduce measures to save electricity
  2. expand public transport
  3. reduce agricultural use of nitrogen fertilizers
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9
Q

evidence for global warming?

A
  1. Human activities like manufacturing, transport, and deforestation, add to increasing
    quantities of greenhouse gases to the atmosphere.
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10
Q

What are the possible impacts of climate and climate change in Africa?

A
  1. A possible temperature increase of 4°C by 2080.
  2. Change of weather patterns causing failure of crops.
  3. Flooding and conflicts over scarce resources.
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11
Q

Factors that affect the temperature of
different Places around the World

A

Latitude & altitude

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12
Q

how does latitude affect the temp

A

Temperatures are high in the areas along the equator and low on the poles

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13
Q

The distance also traveled by the sun’s rays to get to the equator is

A

shorter than the distance the rays travel to get to the poles

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14
Q

Influence of the Seasons

A
  1. he sun is directly over the Tropic of Capricorn on 21 December hence the
    temperatures are high south of the equator
  2. The sun is directly over the Tropic of Cancer on 21 June hence the temperatures are
    high north of the equator
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15
Q

the HEAT EQUATOR

A

The zone of highest temperatures

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16
Q

altitude

A

height above sea level

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17
Q

how does altitude affect the temp

A

Water vapour and carbon dioxide absorb long-wave radiation from the earth

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18
Q

Environmental lapse rate(ELR)

A

The decrease of temperature with height

19
Q

The positive lapse rate of the troposphere is

A

0.65 / 100m

20
Q

a negative lapse rate.

A

Temperature inversion.

21
Q

Temperature inversion.

A

the temperature increases with altitude

22
Q

so the air above a warm surface/ocean is

A

warm

23
Q

so the air above a cold surface/ocean is

A

cold

24
Q

Prevailing winds

A

winds that most often blow this warm or cold air onto the land
and cause temperatures on land to increase or decrease.

25
Q

West coasts are generally cold due to

A

the cold ocean currents that blow over them

26
Q

east coasts are warm due to

A

east coasts are warm due to

27
Q

Annual temperature range:

A

the difference between the highest monthly average
temperature and the lowest monthly temperature of the year.

28
Q

Areas close to the sea have a small

A

annual temperature range

29
Q

areas far from the
sea will have

A

larger annual temperature range

30
Q

Oceans moderates the

A

temperatures of an area

31
Q

Oceans also moderates day and night temperatures causing

A

smaller diurnal (daily)ranges

32
Q

Maritime climate

A

morderate temperature
Warm days and cold nights
Small diurnal temperature range
Warm summers and cool winters
Small seasonal temperature range

33
Q

Continental climate

A

Extreme temperature
Hot days and cold nights
Large diurnal temperature range
Hot summers and cold winters
Large seasonal temperature range

34
Q

Large air masses take time to

A

heat up and also retain the heat for longer periods of time

35
Q

a large land mass heats up

A

quickly and losses the heat quickly too

36
Q

Aspect:

A

the direction in which the slope is facing

37
Q

Southern Hemisphere:

A

all slopes facing north receives more sun’s rays than the south
facing slopes

38
Q

Northern Hemisphere:

A

all slopes facing south receives more sun’s rays than the north
facing slopes

39
Q

Global warming

A

Refers to the increase in average temperatures on earth

40
Q

Causes of global warming:

A
  1. The greenhouse gasses in the atmosphere ( carbon dioxide, carbon monoxide, nitrous oxide, CFCs, methane and water vapor
41
Q

Greenhouse gases are increasing due to:

A
  1. Industrialization and burning of fossil fuels
  2. Deforestation (less trees to absorb)
  3. Increasing population ( larger intake and release of CO2)
  4. Waste dumps
41
Q

Greenhouse gases are increasing due to:

A
  1. Industrialization and burning of fossil fuels
  2. Deforestation (less trees to absorb)
  3. Increasing population ( larger intake and release of CO2)
  4. Waste dumps
42
Q

Evidence of global warming

A
  1. The earth’s temperature is 0.6 - 0.7 warmer than it was 100 years ago
  2. High temperatures are causing melting of the icecaps and glaciers to retreat

geography (4 decks)

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