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1. The test comprises of 10 questions. You should complete the test within 10 minutes.
2. There is only one correct answer to each question.
3. All questions carry four marks each.
4. Each wrong answer will attract a penalty of one mark.

Two months ago, the United Nations Inter-governmental Panel on Climate Change gave us chapter and verse on the science of global warming. And now the new IPCC report spells out the effect this heating of the Earth will have on the planet's Q1.

This Q2. of the work of 2,500 scientists tells us that climate change already is having a significant effect on our environment. Animals, plants and water systems are under pressure now. The IPCC also highlights a Q3. impact on human societies. But it is in its predictions that the report is most worrying. It argues that about a third of Earth's species face a greater risk of vanishing if global temperatures rise 3.6 degrees above the average of the 1990s. Ecosystems in areas of Q4. reef, sea ice, tundra and boreal forests are under serious threat.

The IPCC also argues that Q5. drought and rising sea levels will affect billions of people. Africa, home to the poorest people on the planet, will be hardest hit. Some 75 million to 200 million more people there will be exposed to water shortages and crop failure. It estimates that some African nations might have to spend 5 percent to 10 percent of their gross domestic product on adapting to climate change. Small island communities will also be at severe risk. A sea-level rise is expected to Q6. flooding, storm surges, coastal erosion and other hazards faced by such communities.

But all human societies will be affected. A runaway thaw of the Himalayan glaciers that feed rivers throughout Asia is likely to cause massive flooding and Q7. . Higher temperatures will mean heat waves, more severe storms and droughts in North America. Europe will suffer the same. And there also will be a greater risk of flooding as the Alpine glaciers disappear. In Latin America, eastern parts of the Amazon rainforest will turn to Q8..

The politics of the IPCC is complicated because every nation has to sign off on the report. Negotiations in Brussels on the wording of the document have been Q9. Scientists have accused certain governments of watering down some of their findings. Russia, China, Saudi Arabia and the United States have been the principal objectors.

Yet it is remarkable that despite such political Q10. , the final report is so unequivocal. The IPCC finds that climate change presents one of the most serious threats ever faced by human life on the planet.

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