Workbook 10.4 - 10.5 Answers

Section 10.4
A. Concept checking p.31
1. False
2. True
3. True
4. True

B. Multiple choice p.31
1. D
2. A
3. C
4. C
5. B

C. Matching p.32
(a) ii
(b) i
(c) iv
(d) iii

Section 10.5
A. Concept checking p.34
1. False
2. True
3. True
4. True

B. Multiple choice p.34
1. B
2. D
3. D
4. C

C. Questions p.35
1. (a) Rainwater that has a pH value lower than 5.6.
(b) Sulphur dioxide and nitrogen oxides
(c) Calcium carbonate
(d) Calcium carbonate in limestone reacts with acid rain. Calcium carbonate dissolves and
                gives off carbon dioxide in the process.
(e) • Making the water in lakes and rivers so acidic that fish and plants cannot
survive.
• Making soil too acidic and thus affecting plant growth.
(or other reasonable answers)
2. A small amount of vinegar was left in the bottle. The water she used to water her plants was
        therefore acidic. As a result, the soil became too acidic for plant growth and the plants died.