10 Resources

Question 1

What do humans use resources for?

Answer 1

Warmth, shelter and food

Question 2

What are finite resources?

Answer 2

Resources that will run out

Question 3

What is sustainable development?

Answer 3

Development that meets the needs of the current generations without compromising the ability of future generations to meet their own needs

Question 4

Give an example of a natural product that has been replaced by a synthetic product

Answer 4

Cotton has been replaced by polyester

Question 5

What is potable water?

Answer 5

Water that is safe to drink

Question 6

In the UK how is potable water produced?

Answer 6

Passing fresh water through filter beds and sterilising

Question 7

How is water sterilised?

Answer 7

Using chlorine, ozone or ultraviolet light

Question 8

What is desalination?

Answer 8

Removal of saly from sea water

Question 9

In what two ways can desalination be carried out?

Answer 9

Reverse osmosis or distillation

Question 10

What is the main disadvantage of desalination?

Answer 10

It requires a large amount of energy

Question 11

In what kinds of locations is desalination carried out?

Answer 11

Ones where there is limited supply of fresh water

Question 12

What needs to be removed from sewage and agrictultural waste water?

Answer 12

Organic matter and harmful microbes

Question 13

What needs to be removed from industrial waste water?

Answer 13

Organic matter and harmful chemicals

Question 14

How is sewage treated?

Answer 14

Screening, sedimentation, anaerobic digestion, aerobic biological treatment

Question 15

Name two new ways of extracting copper from low-grade ores

Answer 15

Phytomining and bioleaching

Question 16

What is a low grade ore?

Answer 16

Rock with only a small amount of metal compound in it

Question 17

How is phytomining carried out?

Answer 17

Plants absorb metal compounds, are harvested and then burned to produce ash

Question 18

How is bioleaching carried out?

Answer 18

Bacteria are used to produce a leachate solution

Question 19

How can copper be produced from the products of phytomining or bioleaching?

Answer 19

Electrlysis or displacement with scrap iron

Question 20

What is a life cycle assessment?

Answer 20

A way of assessing the environmental impact of a product across its entire life cycle

Question 21

What are the four stages in a product’s life cycy?

Answer 21

Extracting and processing raw materials, manufacturing and packaging, use and operation, disposal
distribution at each stage.

Question 22

Why is it important to reduce use, recycle and and reuse products?

Answer 22

Reduces the use of limited resources, energy sources and environmental impacts

Question 23

Give an example of a product that can be reused

Answer 23

Glass

Question 24

Given an example of a product that can be recycled

Answer 24

Metal