CHAPTER 13 – ECOLOGICAL BIODIVERSITY AND GLOBAL FOOD PRODUCTION
Summary questions 1. Copy and complete the sentences.
All the communities in an area interacting with each other and their ____________ is called an ecosystem. Healthy ecosystems allow a wide range of different species to exist and so promote ____________. Together, all of the ecosystems on Earth that support life are called the ____________.
2. a. Outline three ways that humans benefit from healthy ecosystems. b. Outline three ways that human activities may damage ecosystems.
3. a. What is pollution? b. Name the three main types of pollution.
4. a. What causes acid rain? b. Give one consequence of acid rain.
5. a. What is conservation? b. Outline three reasons why conservation is important.
6. Identify three conservation strategies that can be practised by: a. individuals b. society
7. a. Explain the term ‘sustainability’. b. Outline one way that you could live more sustainably: i. at home ii. at school
8. One of the great challenges for our society is to continue to produce enough food for a growing human population in the future.
a. Identify two possible solutions to this challenge. b. State one advantage and one disadvantage of each option.
9. Explain the term ‘food gap’.
10. a. Explain why it is important to reduce food miles.
b. Suggest two ways of reducing food miles.
11. a. What is food waste?
b. Suggest two ways that you can cut down on food waste.