Water in SA Flashcards
Fill in the blank.
SA’s water resources are ______.
scarce
Fill in the blank.
There is an _____ _______ for water as the population increases.
increasing demand
Fill in the blank.
South African people must use water _____.
wisely
How much water is used for agriculture and irrigation in SA?
52%
How much does agriculture contribute to our economy in relation to how much water it uses?
It only contributes 3% to the economy, but uses 52% of our water.
True or false:
Water scarcity is a worldwide problem.
true
What is the mean annual rainfall in SA?
300mm-850mm
Fill in the blank.
Each person consumes an average of ____l of water a day.
10
What percentage of water usage in SA is used for domestic use?
10%
Define ‘Environmental water use.’
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.
Define the ‘Domestic use of water.’
Water used in the home.
Fill in the blank.
Rain flows into _____ and _____-.
rivers and lakes
What is the largest river in KZN?
The Tugela river.
How large is the Tugela river?
approx 29 100km^2
Fill in the blank.
_____ __________ of the land around the rivers in SA has led to _____ of the rivers.
Poor management
pollution
Fill in the blank.
__________ has caused soil erosion, which effects the _______ and flow of the water.
deforestation
quality
Fill in the blank.
Deforestation has caused _____ _______, which effects the quality and ____ of the water.
soil erosion
flow
this isn’t in the right deck but I don’t want to forget, so, umm:
What is a statistician?
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.
What does it mean to use water responsibly?
Domestic, agricultural and industrial users should not waste or pollute water.
How can one save water? Name 3 ways.
- use less water for showers or baths
- fix leaking taps
- plant indigenous plants that need less water to grow
What can industries do to ensure that they save water?
Ensure that water is recycled and that waste products are disposed of correctly.
What can farmers do to ensure that they save water?
They need to use efficient irrigation systems so that water doesn’t drain away or evaporate. Fertilisers and pesticides must be used with care.
