244 Answer key
15·6 1. c
- b
- c
- a
- a
- b
- F
- T
- F
- F
- T
- T
- Exponential growth occurs when an entity doubles in number, then rapidly redoubles.
- Overshoot occurs when an activity exceeds its physical limits.
- Sustainability occurs when the needs of the present generation are met without compromising the ability
of future generations to meet their needs. - To achieve sustainability, renewable resources cannot be used at a greater rate than they can be produced,
nonrenewable resources cannot be consumed at a greater rate than they can be replaced by renewable
resources, and pollution cannot be produced at a greater rate than the Earth can absorb or detoxify it. - he ive factors were population, food production, industrial production, pollution, and consumption
of nonrenewable natural resources.
15·7 1. cannot - went against popular beliefs
- for humanitarian reasons
- unpopular
- they could go on doing the same things forever
- it takes fewer women giving birth to keep the population growing
- beliefs
- wisely
15·8 Answers will vary.
15·9 1. X6.✓ - X7. X
3.✓ 8.✓ - X9.✓
5.✓ 10. X
15·10 Answers will vary.