Biology B3 4.3 Air pollution.

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What makes rain more acid?
Sulfur dioxide dissolved in rain makes it more acid.
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What is indirectly and directly affected by acid rain?
Organisms can be killed or damaged from soil and waterways affected by changes caused by acid rain. Trees can also be damaged which can result in loss of food and habitats for many other organisms.
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What can burning fuels produce?
Sulfur dioxide and other acidic gases.
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What do power stations and cars release?
Acidic gases.
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How is acid rain formed?
Sulfur dioxide dissolves in water in the air, forming acidic solutions. These acidic solutions then fall as acid rain, sometimes a long way from where the gases were produced.
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How are trees affected by acid rain?
Trees can be damaged if the leaves are soaked in acid rain for long periods. Acid rain can change soil pH, which damages roots and may release toxic minerals which also damage organisms in the organisms and waterways.
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How are reactions affected by acid rain?
Enzymes, which control reactions, are very sensitive to pH (acidity and alkalinity).
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How an acid rain affect areas a long way from where the sulfur dioxide is released?
The gas is blown by winds before it dissolves in rain.
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How are birds affected by acid rain?
Damage to trees means that birds lose food and habitat.
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Other cards in this set

Card 2

Front

What is indirectly and directly affected by acid rain?

Back

Organisms can be killed or damaged from soil and waterways affected by changes caused by acid rain. Trees can also be damaged which can result in loss of food and habitats for many other organisms.

Card 3

Front

What can burning fuels produce?

Back

Preview of the front of card 3

Card 4

Front

What do power stations and cars release?

Back

Preview of the front of card 4

Card 5

Front

How is acid rain formed?

Back

Preview of the front of card 5
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