CHAPTER 40 – CLIMATE CHANGE


Summary questions 1. Copy and complete the sentences.


Gases that trap heat near the Earth’s surface are known as ____________ gases. If the concentration of these gases in the atmosphere rises above normal levels, it is known as the enhanced ____________ ____________. The extra heat results in an increase in the temperature of the Earth’s surface, known as ____________ ____________.


2. Name two greenhouse gases. 3. Explain the difference between the terms ‘global warming’ and ‘climate change’.


4. a. Name three human factors that have contributed to climate change. b. Identify one way we can help address each of these causes of climate change.


5. Explain the term ‘carbon footprint’.


6. a. List three effects of climate change. b. Outline how one of these effects has impacted your day-to-day life. Do you think it will have more or less of an effect in the future? Justify your answer.


7. Outline how climate change contributes to the following issues:


a. reduced availability of food and water b. extreme weather events c. species extinctions


:Fig. 40.11


8. The international community has tried to address climate change for many years, with varying degrees of success. Name one international meeting that brought governments together in search of a way of tackling global warming and climate change.


9. Identify three ways you can help to tackle global warming and climate change: a. at home b. at school


10. Greta Thunberg has done a huge amount to raise awareness about climate change amongst young people. Why do you think Greta’s message has had more of an impact on young people than on politicians or even scientists? Justify your answer.


)Fig. 40.12 Elements of Science 393


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