Water in SA Flashcards

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1
Q

Fill in the blank.

SA’s water resources are ______.

A

scarce

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2
Q

Fill in the blank.

There is an _____ _______ for water as the population increases.

A

increasing demand

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3
Q

Fill in the blank.

South African people must use water _____.

A

wisely

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4
Q

How much water is used for agriculture and irrigation in SA?

A

52%

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5
Q

How much does agriculture contribute to our economy in relation to how much water it uses?

A

It only contributes 3% to the economy, but uses 52% of our water.

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6
Q

True or false:

Water scarcity is a worldwide problem.

A

true

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7
Q

What is the mean annual rainfall in SA?

A

300mm-850mm

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8
Q

Fill in the blank.

Each person consumes an average of ____l of water a day.

A

10

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9
Q

What percentage of water usage in SA is used for domestic use?

A

10%

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10
Q

Define ‘Environmental water use.’

A

The water that is needed to keep rivers flowing. If too much water if taken from a river, it stops flowing and plant and animal life downstream suffers.

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11
Q

Define the ‘Domestic use of water.’

A

Water used in the home.

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12
Q

Fill in the blank.

Rain flows into _____ and _____-.

A

rivers and lakes

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13
Q

What is the largest river in KZN?

A

The Tugela river.

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14
Q

How large is the Tugela river?

A

approx 29 100km^2

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15
Q

Fill in the blank.

_____ __________ of the land around the rivers in SA has led to _____ of the rivers.

A

Poor management

pollution

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16
Q

Fill in the blank.

__________ has caused soil erosion, which effects the _______ and flow of the water.

A

deforestation

quality

17
Q

Fill in the blank.

Deforestation has caused _____ _______, which effects the quality and ____ of the water.

A

soil erosion

flow

18
Q

this isn’t in the right deck but I don’t want to forget, so, umm:
What is a statistician?

A

Someone who works out statistics like the birth and death rates. They organise and interpret numerical data to prove useable information.
You have to be good at maths to be a statistician.

19
Q

What does it mean to use water responsibly?

A

Domestic, agricultural and industrial users should not waste or pollute water.

20
Q

How can one save water? Name 3 ways.

A
  • use less water for showers or baths
  • fix leaking taps
  • plant indigenous plants that need less water to grow
21
Q

What can industries do to ensure that they save water?

A

Ensure that water is recycled and that waste products are disposed of correctly.

22
Q

What can farmers do to ensure that they save water?

A

They need to use efficient irrigation systems so that water doesn’t drain away or evaporate. Fertilisers and pesticides must be used with care.