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GCSE - Geography (Dave) > Water > Flashcards

Flashcards in Water Deck (17)
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1
Q

Why is there more water used in MEDCs?

A

Sanitation
Central heating
Water used in industry

2
Q

How many people do not have access to enough water?

A

1 billion people

3
Q

What are aquifers?

A

Drilling to the water table and pump water to the surface

4
Q

What are the benefits aquifers?

A

Not likely to be polluted

Not as much purification required

5
Q

What are the disadvantages of aquifers?

A

Can be difficult to get to and drilling is expensive

6
Q

What are desalination plants?

A

Distill sea water by removing salts

7
Q

What are the benefits of desalination plants?

A

Doesn’t affect fresh water

No shortage of sea water

8
Q

What is the disadvantage of desalination plants?

A

Very expensive

9
Q

How do people use lakes and rivers for water sources?

A

Purifying water

10
Q

What is the advantage of lakes and rivers?

A

Cheap

11
Q

What are the disadvantages of lakes and rivers?

A

Pollution

Overused

12
Q

What is large-scale rainwater harvesting?

A

Reservoirs, made by large dams

13
Q

What are the benefits of large-scale rainwater harvesting?

A

Can be used for HEP

Supports many people

14
Q

What are the disadvantages of large-scale rainwater harvesting?

A

Large surface area - large amount of evaporation

Dam is expensive

15
Q

What is small-scale rainwater harvesting?

A

Houses have run-off water storage tanks made

16
Q

What are the benefits of small-scale rainwater harvesting?

A

Saves money

Home access

17
Q

What are the disadvantages of small-scale rainwater harvesting?

A

Can’t be used for drinking