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P1: Quiz 13 – Answers
P1: Quiz 13 – Answers
1)
a) The hot water can be used in homes (for either heating or taps). Also, the water can be used to generate electricity by being turned into steam, which is used to turn turbines that are connected to generators, thus generating electricity
b) Any 2 from:
2)
a) Biofuels are produced from plant material or animal waste
b) We can use biofuels to run power stations or fuel cars
c) They are renewable and supposedly carbon neutral
d) Any 2 from:
a) The hot water can be used in homes (for either heating or taps). Also, the water can be used to generate electricity by being turned into steam, which is used to turn turbines that are connected to generators, thus generating electricity
b) Any 2 from:
- geothermal is renewable
- it is reliable
- it produces no pollution whilst generating electricity or heating water
- the cost of building geothermal power plants is very expensive
- there are very few locations across the world where we can use geothermal energy
2)
a) Biofuels are produced from plant material or animal waste
b) We can use biofuels to run power stations or fuel cars
c) They are renewable and supposedly carbon neutral
d) Any 2 from:
- the growing of crops for biofuels takes up land that could have been used to grow food. This could potentially lead to food shortages or increases in food prices
- the growing of biofuels could result in more farmland being required, which may be obtained by habitat destruction such as deforestation. Land/ forests are usually cleared by burning everything that is there, which releases lots of carbon dioxide into the atmosphere – this will cause the enhanced greenhouse effect and climate change
- more labour is needed for biofuel production compared to obtaining fossil fuels (oil)
Questions
1)
a) Geothermal energy can be used to heat up water. What can this hot water be used for?
b) Give 2 advantages of geothermal energy.
c) Give 2 disadvantages of geothermal energy.
2)
a) What are biofuels created from?
b) What can biofuels be used for?
c) Give 2 advantages of using biofuels.
d) Give 2 disadvantages of using biofuels.
1)
a) Geothermal energy can be used to heat up water. What can this hot water be used for?
b) Give 2 advantages of geothermal energy.
c) Give 2 disadvantages of geothermal energy.
2)
a) What are biofuels created from?
b) What can biofuels be used for?
c) Give 2 advantages of using biofuels.
d) Give 2 disadvantages of using biofuels.