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WorksheetsUse of Natural Resources (AQA)
Total questions: 26
Worksheet time: 16mins
An example of something that is biodegradable is...
a leaf in a compost pile
a plastic milk jug in a landfill
a styrofoam burger container in a trash can
All of the above
Potable water means...
Water which comes straight from a river or reservoir
Water containing bacteria
Water which is safe to drink
Water which contains a high concentration of salt
Water directly from a river or reservoir is not safe to drink because...
It contains bacteria and possibly other microbes
It contains sand
It contains high levels of dissolved salt
It contains chemical waste
At a water treatment plant, water passes through beds of...
Sand and filter paper
Carbon and sand
Carbon and filter paper
Sand and limestone
Some countries, which have little rainfall, must purify sea water for drinking. This is more difficult than using river water because...
Seawater contains much more dissolved salt
Seawater contains more bactera
Seawater contains more sand and mud
Seawater is more costly to collect
The process used to purify sea water is called...
Evaporation
Crystallisation
Filtration
Distillation
Before water is suitable for drinking, any bacteria in it must be killed. This is called...
Chlorification
Purification
Sterilization
Bacteriacide
Which of these methods is not used to kill bacteria in water?
Ozone gas
Chlorine
UV light
Oxygen gas
Which of these is likely to contain the highest concentrations of both harmful bacteria and toxic chemicals?
Sea water
River or reservoir water
Distilled water
Raw sewage
Which substances would you NOT find in pure water?
Bacteria
Minerals
Dirt
Acids
None of these
