Fossil Fuels

Question 1

Names of the 3 main fossil fuels

Answer 1

Coal
Natural Gases
Crude Oil

Question 2

Importantce of coal to society

Answer 2

Generating electricity

Question 3

Importantce of natural gas to society

Answer 3

Cooking + heating

Question 4

Importantce of crude oil to society

Answer 4

Petrol + diseal for cars + Jet fuel for airplanes

Question 5

Why are fossil fuels non-renewable?

Answer 5

Takes millions of years to form

Question 6

Alternative energy sources

Answer 6

Renewable energy - produced from natural sources that can replenish themselves such as wind, solar, tidal or hydroelectric

Question 7

Advantages of a hydrogen powered car

Answer 7

Sufficient supply of water
Sustainable and renewable
Only product is water

Question 8

Disadvantages of a hydrogen powered car

Answer 8

Need electricity to produce hydrogen
Currently would cost a lot of money
Safety concerns - flammable

Question 9

Disadvantages of a petrol powered car

Answer 9

Run out of petrol
Produces polluting gases which have harmful effects

Question 10

Formation of coal

Answer 10

Millions of years ago trees and plants died
They were buried under layers of mud
Over time heat and pressure turned the plant remains into coal
Therefore coal is deep underground
We have to obtain it via mining before we can burn it into power stations

Question 11

Formation of oil and gas

Answer 11

Millions of years ago sea creatures died
When sea creatures died they fell to the sea bed
They were covered with sand and squashed
Over millions of years the heat and pressure cause d the remains of the sea creatures ti turn into crude oil and natural gas
We have to obtain them by drilling