Chapter 7 Revision

Question 1

Fossil fuel

Answer 1

A non renewable resource that is burnt to produce heat

Question 2

Open- cut mining

Answer 2

A form of mining that is open above ground and it is not as dangerous as underground mining.

Question 3

Mineral ore

Answer 3

A substance that contains minerals of value obtained by mining.

Question 4

Black coal

Answer 4

A hard dry coal. Formed by compressing peat over millions of years.

Question 5

Brown coal

Answer 5

Not as hard as black coal. Formed by compressing peat over millions of years and black coal is more efficient.

Question 6

Gangue

Answer 6

Left over waste rock and mineral material.

Question 7

Deposition

Answer 7

The laying down of weathered rock particles.

Question 8

Desalination

Answer 8

The conversion of sea water to fresh water.

Question 9

Weathering

Answer 9

Breaking down rocks using conditions of the atmosphere.

Question 10

Erosion

Answer 10

The process of moving weathered rock from one place to another.

Question 11

Biomass

Answer 11

Material produced by living organisms.

Question 12

Mining

Answer 12

Digging into the ground to find valuable minerals.

Question 13

Deforestation

Answer 13

The process of cutting down trees.