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GCSE
Gcse Science
Chemistry - Fuels And Pollution (Aqa)
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Q.1
One of the pollutants from burning fossil fuels is carbon dioxide. To which of the following environmental issues does it contribute?
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The hole in the ozone layer
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Acid rain
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Global dimming
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Global warming
Q.2
What are biofuels?
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Fuels made from animals
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Fuels made only from plants
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Fuels made from any living thing or its waste
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Fuels made only from animal dung
Q.3
Why is carbon dioxide from fossil fuels a particular issue?
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It is slightly radioactive
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It is more polluting than the carbon dioxide breathed out by animals
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Plants can't absorb it
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It was locked away millions of years ago and so is adding to that which is present in the air today
Q.4
Why is burning biofuels less of a problem than burning fossil fuels?
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They don't produce any CO2 when they burn
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They are renewable and don't release carbon locked away millions of years ago
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They are cheaper and easier to produce when compared to fossil fuels
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All of the above
Q.5
Which one of the following could be an argument against growing plants for biofuels?
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Farmers would earn more money
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You need a lot more people to produce biofuels than fossil fuels
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It could make fuel prices lower
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It could increase food prices or cause food shortages
Q.6
Which impurity in fuels causes acid rain when it burns?
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Carbon
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Hydrogen
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Soot
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Sulfur
Q.7
Which of the following is a balanced equation that shows how sulfur dioxide is formed?
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S + O → SO
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S + 2O → S2O
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S + O2 → SO2
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2S + O2 → 2SO2
Q.8
Apart from sulfur, what else from burning fuels is a major contributor to acid rain?
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Carbon monoxide
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Di-hydrogen oxide
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Unburnt fuel
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Nitogen oxides
Q.9
Which of the following might be directly caused by burning fuels?
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Respiratory system problems
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Bladder problems
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Broken bones
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Indigestion
Q.10
Which of the following products of burning fuels could be responsible for global dimming?
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Tiny solid particles
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Water vapour
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Carbon dioxide
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Nitrogen oxides
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