past paper questions Flashcards
1
Q
problems of underpopulated countries
A
- low economic growth
- lack of labour
- labour is expensive
- difficult to fund facilities
- low tax revenue
- need to attract immigrants
2
Q
natural increase
A
birth rate - death rate
3
Q
why hot deserts have high range of temperature
A
- high temp during day but cold during night
- lack of clouds
- sun during the day
- heat escapes during the night
4
Q
why hot deserts have low rainfall
A
- cold currents
- high air pressure
- rain shadow effect
- no transpiration
- descending air
5
Q
groudwater flow
A
water which flows through rocks
6
Q
throughflow
A
water which flows through soil
7
Q
overland flow
A
surface runoff
8
Q
how greenhouse gases cause climate change
A
suns rays pass through the atmosphere and rays radiate off the earths surface so heat is trapped
9
Q
problems which may result from global warming
A
- visual impact
- smells
- loss of tourism
- eutrophication
- damaging of coral reefs
- loss in biodiversity
