1.3 National and global energy resources

Question 1

1.3.1 energy resources

What are the main energy resources

Answer 1

• fossil fuels: coal, oil, gas
• nuclear fuel
• bio-fuel: plant matter usually used as fuel
• wind: turbines spin a generator to produce electricity
• hydro-electric: falling water spinds a turbine to produce electricity
• geothermal: hot rocks underground to produce steam
• tidal: rise and fall of the tide can be used to turn a turbine
• solar
• water waves: up and down movement can turn turbines

Question 2

1.3.1 energy resources

How are energy resources used?

Answer 2

Transport: cars, trains, buses, planes
Electricy generation: industry, homes, lighting, commerce
Heating: homes, industry, schools, hospital

Question 3

1.3.1 energy resources

Solar

pros and cons

Answer 3

Pros: renewable, no pollution, sunny countries: reliable
Cons: lots of energy to build, workds during day, cannot increase power

Question 4

1.3.1 energy resources

Geothermal

pros and cons

Answer 4

Pros: renewable, reliable, power stations have small impact on environment
Cons: found in specific places, may release greenhouse gases

Question 5

1.3.1 energy resources

Wind

pros and cons

Answer 5

Pros: renewable, no pollution, no lasting damage on environment, minimal running costs
Cons: not reliable, cannot increase supply if/when needed

Question 6

1.3.1 energy resources

Hydro-electric

pros and cons

Answer 6

Pros: renewable, no pollution, can increase supply if needed
Cons: BIG impact on environment, animals may lose habitats

Question 7

1.3.1 energy resources

Wave power

pros and cons

Answer 7

Pros: renewable, no pollution
Cons: disturbs seabed and habitats of animals, unreliable

Question 8

1.3.1 energy resources

Tidal

pros and cons

Answer 8

Pros: renewable, reliable, no pollution
Cons: chages wildlife habitats, fish can be killed in turbine

Question 9

1.3.1 energy resources

Biofuel

pros and cons

Answer 9

Pros: renewable, reliable, carbon neutral
Cons: high cost, clearing natural forests, spacial problem

Question 10

1.3.1 energy resources

Non renewables: nuclear, gas, oil, coal

pros and cons

Answer 10

Pros: reliable, enough to meet demand, can produce more energy
Cons: running out, produces carbon dioxide, affects global warming, can create acid rain