Energy resources Flashcards
0
Q
Coal cons -3
A
- Gives off carbon dioxide when burned
- Fossil fuel
- releases sulphur dioxide which combines with water to form acid rain
1
Q
Coal pros -2
A
- ‘ready made’ fuel
- relatively cheap both to mine & to convert into electricity
2
Q
Oil pros -2
A
- ‘ready made’ fuel
- relatively cheap both to mine & to convert into electricity
3
Q
Oil cons
A
- Limited supply
- Gives off carbon dioxide & sulphur dioxide (causes acid rain) when burned
- Fossil fuel
4
Q
Gas pros -3
A
- slightly cleaner than oil/coal
- cheap
- ready made fuel
5
Q
Gas cons
A
Limited supply
Gives off pollutants when burned
6
Q
Solar pros -3
A
- renewable energy resource
- no fuel costs once installed
- no harmful polluting gases
7
Q
Tidal pros -3
A
- good for islands (UK)
- can generate lots
- tidal barrage can multitask as bridge & flood defence
8
Q
Tidal cons -3
A
- costly construction
- only a few suitable estuaries
- Can have a negative impact on wildlife & tidal flow
9
Q
Geothermal pros
A
Potentially infinite supply
10
Q
Geothermal cons -5
A
- expensive
- only in volcanic areas
- unreliable
- geothermal & volcanic activity might calm down, leaving power stations redundant
- dangerous elements found underground must be disposed of carefully
11
Q
Wind pros -2
A
- non pollutant
- renewable
12
Q
Wind cons -3
A
- noisy
- unreliable
- costly to set up
13
Q
HEP pros 3
A
Creates water reserves as well as energy supplies
Very reliable
Can operate in reverse - pump water back up into high level reservoirs
14
Q
HEP cons -3
A
- can cause flooding
- costly construction
- dams can have major ecological impact on local hydrology
