Electricity Flashcards
1
Q
Why are coal, oil and natural gas non-renewable resources?
A
They cannot be replaced, except over millions of years
2
Q
What problem does sulfur dioxide cause?
A
It contributes to acid rain
3
Q
Why are uranium and plutonium used as nuclear fuels?
A
They are radioactive
4
Q
Advantage of nuclear fuels
A
They do not produce greenhouse gases
5
Q
Disadvantage of wind farms
A
- They are noisy and unsightly
- Unpredictable (no wind, no energy)
6
Q
Advantage of wind farms
A
- Renewable
- No fuel costs
- No polluting gases
7
Q
Disadvantage of solar cells
A
- Do not work at night
- Expensive
- May need supplementing
8
Q
Advantage of solar cells
A
- Renewable
- No fuel costs
- No polluting gases
9
Q
Disadvantage of hydroelectric power
A
- River valleys and farmland are flooded by the dam
- Destroy habitats
- Releases methane
10
Q
Advantage of hydroelectric power
A
- Renewable
- No fuel costs
- No pulluting gases
