N5 Environmental Science Unit 2

• A

• B

• C

Iron ore is located in the crust of the Earth. Define the term ore.

• A naturally occurring solid material from which a metal or valuable mineral can be extracted profitably

• A man made solid material from which a metal or valuable mineral can be extracted profitably

• A naturally occurring solid material from which a metal or valuable mineral can be extracted at a loss

• A naturally occurring liquid material from which a metal or valuable mineral can be extracted profitably

• 20

• 2000

• 20,000

• 20,000,000

The ore has a density of 4 tonnes per m3 . Use the formula below to calculate the mass, in tonnes, of the ore.

(mass = density × volume)

• 80

• 8000

• 80,000

• 80,000,000

Commercial jet aircraft run on aviation fuel. Name the raw material from which aviation fuel is produced.

• Cruise Oil

• Crude Oil

• Cruise Gas

• Crude Gas

Name the process by which aviation fuel is obtained from its raw material.

• Fractional Distillation

• Fracking

• Fractional Distilling

• Fracking Distillation

Name one source of non-renewable energy.

• Tidal

• Hydroelectric

• Coal

• Wind

Ben Nevis is the highest mountain in the British Isles at 1345 metres above sea level. Weathering and erosion are reducing its height at an average rate of 0·1 mm per year. Calculate how many years it would take to reduce Ben Nevis to sea level.

• 13 450 000 000

• 13 450 000

• 13 450

• 1345

Explain why the rock sandstone contains water.

• It is permeable

• It is porous

Identify the correct type of weathering

• Biological

• Chemical

• Physical