Using the Earth's Resources

Question 1

What do we use the Earth's resources for?
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S
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F
T

Answer 1

warmth, shelter, food, fuel, transport

Question 2

What are some examples of natural resources?

Answer 2

cotton, wool, timber

Question 3

What are some examples of synthetic resources
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a

Answer 3

plastic, polyester, acrylic

Question 4

What is sustainable development?

Answer 4

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

Question 5

what are the four main types of water?
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Answer 5

pure water
salt water
fresh water
potable water

Question 6

what is potable water

and the difference between normal water

Answer 6

water that is considered safe to drink, containing low levels of dissolved salts/ minerals and free of any microbes (bacteria/viruses)
whereas pure water has nothing else dissolved in it (H2O)

Question 7

In the UK how is potable water extracted from fresh water
F
s

Answer 7

filtration

sterilisation

Question 8

What is sterilisation

Answer 8

killing microbes

Question 9

what are three examples of sterilising agents

Answer 9

UV light
ozone
chlorine gas

Question 10

how can potable water be produced from SALT water

Answer 10

deSALination

Question 11

how can Desalination be carried out

Answer 11

Distillation

reverse osmosis

Question 12

What are three main types of WASTE water

Answer 12

sewage
agricultural waste
industrial waste

Question 13

what can waste water contain

Answer 13

organic matter
harmful microbes
harmful chemicals

Question 14

what is the first step in processing waste water

Answer 14

screening

grit removal

Question 15

what is sedimentation

Answer 15

separating waste water

into sludge and effluent

Question 16

how is sludge treated

anna sludge

Answer 16

anaerobic respiration

Question 17

how is effluent treated

fck air

Answer 17

aerobic respiration

Question 18

what is phytomining

Answer 18

using plants to extract copper

Question 19

what is bioleaching

Answer 19

using bacteria to extract copper

Question 20

what is a life cycle assessment

Answer 20

a way of assessing the energy costs and environmental effect of a product across its lifetime

Question 21

what are the 4 stages of a life cycle assessment

EMUD.

Answer 21

extracting and processing raw materials
manufacturing and packaging
use and operation during its lifetime
disposal at the end of its useful lifetime

Question 22

how can we reduce the amount of materials manufactured

Answer 22

reducing reusing or recycling materials

Question 23

in what ways can materials that are not recycled be disposed?

Answer 23

landfill

incineration

Question 24

what is meant by a finite resource

Answer 24

will run out as they are no longer being made or are made extremely slowly (over a period of millions of years)

Question 25

what is meant by the term renewable?

Answer 25

can be replaced as it is used up

Question 26

what is meant by the term sustainable?

Answer 26

able to be maintained at a certain level over a long period of time