5.8 acid deposition

5.8 Acid deposition

Outline the chemistry leading to the formation of acidified precipitations.Describe three possible effects of acid deposition on soil, water and living organisms.Explain why the effect of acid deposition is regional rather than global.Describe and evaluate pollution management strategies for acid deposition.

What are the gases that cause acid deposition?1.2.

Why does acid deposition happen in places where gases aren’t released?

What do some gases mix with to cause wet deposition?

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What gives out the gases in the first place?1.2.

What acids do they form when they mix with water?

What falls to earth in dry deposition?

Effects: cut a paste at least 8 pictures to show the effects on ecosystems of acid deposition. Label each

picture. Soil/Trees/Water

1. Explain why rainfall is some parts of the world is unnaturally acidic. (4)

2. Explain the difference between wet deposition and dry deposition. (2)

3. Describe four effects that acid deposition might have on ecosystems. (6)

Is it only acid rain that causes the problem?

4. Why is acid deposition not seen as a global problem? (3)

What can be done?

5. The following diagram represents three stages of pollution:

Explain how a strategy of pollution management could be introduced at each of these three stages to reduce the impacts of acid deposition. (3)

Discuss a possible disadvantage of each of the three strategies of pollution management you described above. (3)

Outline the chemistry leading to the formation of acidified precipitations.

Describe three possible effects of acid deposition on soil, water and living organisms.

Soil: Water: Living organisms:

Explain why the effect of acid deposition is regional rather than global.

Describe and evaluate pollution management strategies for acid deposition.

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