C2.4 - Evolution of the atmosphere Knowledge Test

Instructions:

1. Fill in your exam number in the box above.
2. Answer all questions

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1) What is the composition of the earths atmosphere?

2) How has the Earths atmosphere evolved?

3) How has the Earths atmosphere evolved?

4) What types of gases did volcanoes produce?

5) What happened to the atmopshere when the oceans formed?

6) What process has caused oxygen levels in our atmosphere to increase since its formation?

7) When did Algae first produce oxygen?

8) How did Algae and plants affect the atmosphere?

9) Apart from through the process of photosynthesis, what else has caused carbon dioxide levels in the atmosphere to decrease since its formation?

10) How did the Earth's atmosphere change over time? Why did these changes happen?

11) How and why did limestone, coal, crude oil and natural gas form?

12) How does the atmosphere help the Earth maintain stable surface temperatures?

13) What are the long and short term impacts of the greenhouse effect?

14) What types of human activities increase the amounts of greenhouse gases in the atmosphere?

15) What do most scientists believe will happen to the Earth?s atmosphere?

16) What difficulties can such complex systems as global climate change cause?

17) What is the importance of peer reviewing results and of communicating results to a wide range of audiences.

18) What is a major cause of climate change?

19) Describe briefly four potential effects of global climate change

20) What are the scale, risk and environmental implications of global climate change.

21) What is a carbon footprint?

22) How can a carbon footprint be reduced?

23) What actions are required to reduce emissions of carbon dioxide and methane?

24) What human activity is the biggest contributor to an increase in atmospheric pollutants?

25) What do most fuels contain?

26) Name the gases commonly released into the atmosphere when a fuel is burned?

27) How does burning fuels produce carbon monoxide, soot (carbon particles), sulfur dioxide and oxides of nitrogen?

28) What are the impacts of emissions of carbon monoxide?

29) What environmental impact does the emission of sulfur dioxide and oxides of nitrogen cause?

30) What environmental impact do particulates cause?

31) Describe and explain the problems caused by increased amounts of the following pollutants in the atmosphere: a) Carbon Dioxide b) Nitrogen Oxides c) Sulfur Dioxide d) Particulates

32) How do the Big Ideas link to this topic?