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Worksheets2021 Water review
Total questions: 15
Worksheet time: 6mins
Why is fresh water a limited resource?
It isn't because it is a renewable resource
97% of water is in the oceans and too salty to drink.
Only 2.5% is drinkable and is stored in icecaps, rivers, and lakes.
Define infiltration.
The process where plants give out water vapour through their leaves
The process where water falls back to the earth’s surface.
The process where water flows over the earth’s surface.
The process where water seeps into the soil.
Which one of the following is a NON-DOMESTIC use of water?
Flushing of toilet
Cooling and cleaning agent for machinery
Brushing of teeth
Cooking
Where can ice-caps and glaciers be found?
Malaysia
Greenland
Brazil
India
What is water deficit?
The amount of water increases when input is more than output
The amount of water decreases when input is less than output
What is flood?
overflow of a large amount of water onto what is normally dry land
long period of little or no rainfall in a specific area.
Which of the following DOES NOT cause flood?
sustained heavy rainfall
melted water produced by snow
water stores dry up
water level in the river rises
Which of the following is an impact of water pollution?
throw rubbish into the river
algae grow rapidly
factories release toxic chemical
no proper system to treat wastewater
Which of the following strategies improves water quality?
Desalination
signing agreement with another country to buy water
public education
implement laws
