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- 1. Multiple Choice
How much of Earth's water is fresh water?
1%
3%
77%
97%
- 2. Multiple Choice
Which of the following does not make up part of Earth’s surface water?
wetlands
rivers
aquifers
lake
- 3. Multiple Choice
Which of the following statements helps to explain why fresh water is a limited resource?
Most of Earth’s water is salt water
About 71 percent of Earth’s surface is covered by water
Most of Earth’s fresh water is not liquid water usable by humans.
both (a) and (c)
- 4. Multiple Choice
Surface water becomes groundwater when it
moves below the water table
condenses to form drops of liquid water.
percolates into the recharge zone.
flows onto the ground through a spring.
- 5. Multiple Choice
A rock’s ability to allow the flow of water through it is called
permeability.
porosity.
recharge.
distribution.
- 6. Multiple Choice
Overuse of water for irrigation may lead to
Lowering of Groundwater Level
Increasing food production
The rapid development of Industries
None of these
- 7. Multiple ChoiceWater that collects in spaces and cracks in rocks and soil underground.wellaquifergroundwaterirrigation
- 8. Multiple ChoiceA region of land that drains into a river.water reclamationwatershedaquiferirrigation
- 9. Multiple ChoiceA hole dug or drilled into the ground to provide a supply of water.watersheddesalinationgroundwaterwell
- 10. Multiple ChoiceWhen water changes form from a LIQUID to a GAS?CondensationEvaporationPrecipitation
- 11. Multiple ChoiceThe amount of water on average used by individuals, based on domestic is and agricultural or industrial consumption is termed ____.transpirationfresh waterwater scarcitywater footprint
- 12. Multiple ChoiceDoes everyone have access to a clean water supply?YesNo
- 13. Multiple ChoiceDesalination isremoving salt from waterremoving oil from waterremoving toxic chemicals from wateradding salt to water
- 14. Multiple Choice
Which of the following is NOT one of the ways in which humans directly can change water resources?
Irrigation (diverting water away from original water source to farm lands)
Building dams
Droughts
Pollution
- 15. Multiple Choice
Water is a what type of resource?
renewable resource
non-renewable resource
continuous resource
- 16. Multiple ChoiceWhat is algal bloom?Plants bloom early down streamWater becomes cloudyToo much of nutrientsExtremely rapid growth of algea
- 17. Multiple ChoiceWhat is Pollution?Increase in Earths temperaturesSudden growth in algae in a pondDecrease in oxygen in waterHarmful substance in environment
- 18. Multiple Choice
What do untreated (raw) sewage and fertilisers have in common?
They encourage excessive growth of aquatic plants
They are eaten by animals in the water
They accumulate in the tissues of aquatic organisms
- 19. Multiple Choice
What causes depletion of oxygen during eutrophication?
Excessive growth of plants on the surface
Death of fish
Death of plants beneath the surface
Increase of animals eating surface plants.
- 20. Multiple Choice
In what ways industrialization leads to water scarcity
Overuse of water for manufacturing processes
Mixing of industrial waste-water in freshwater
Ownership of Water sources
All of these
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