Topic 1b - energy resources (4. biofuels and non renewables)

Question 1

what are bio fuels

Answer 1

renewable energy resources created from plant products or animal dung. burnt to produce electricity or to run cars

Question 2

advantages of bio fuels

Answer 2

reliable as crops take a short time to grow, when energy is in demand biofuels can be continuously stored and when needed they are there.

Question 3

disadvantages of biofuels

Answer 3

expensive, take up a lot of space

Question 4

what is carbon neutral

Answer 4

biofuels that are made from plants are carbon neutral, the plants that grow to produce the waste absorb the co2 from the atmosphere, so when the waste is burned the co2 is re released into the atmosphere so it has a neutral effect.

Question 5

what are fossil fuels

Answer 5

most of the electricity we use is generated from fossil fuels.

Question 6

advantages of fossil fuels

Answer 6

reliable, cost effective energy, enough fuel to meet current demand

Question 7

disadvantages to fossil fuel

Answer 7

big impact on environment, will eventually run out

Question 8

what are nuclear fuels

Answer 8

Nuclear fission of the nuclear fuels such as uranium and plutonium releases the energy to heat water into steam which drives turbines.

Question 9

Advantages of nuclear fuel

Answer 9

nuclear power is clean, doesn’t release any harmful gases or chemicals into the atmosphere, reliable