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READING COMPREHENSIONA.Choose the best answer for each question.1.What is the main idea of the reading passage?a.The movie Before the Flood is raising awareness of climate change.b.Global warming is causing many problems on Earth.c.Scientists are finding ways to slow the melting of glaciers.2. What reason is NOT given for the faster glacier movement in Greenland?a.warming air temperaturesb.unusual rainfall patternsc.water getting beneath the ice3. What do some researchers believe will happen by the year 2100?a. Global sea levels will rise by at least a meter.b. Millions of homes will be lost in Greenland.c. The ice sheet of Antarctica will completely melt.4. What does DiCaprio mean by %u201cthe future of the planet is at stake%u201d?a. Nobody knows what the world will be like in years to come.b. There is a risk that the entire world could be seriously affected.c. There is much disagreement about how the world is changing.5. What would be the best heading for the final paragraph?a. What Can We Do?b. What Is the Cause?c. Who Is to Blame?B.Complete the steps in the diagram describing the melting of Chacaltaya glacier. Write the correct letter (a%u2013e) in each space.a.More dark rocks are uncovered.b.The snow melts more quickly.c.The Chacaltaya glacier melts.d.The rocks absorb more heat.e.The temperature rises.MAIN IDEAREASONSDETAILINFERENCEMAIN IDEACAUSE AND EFFECTReview this reading skill in Unit 6AThe Arctic fox is one of many animals whose habitats are threatened by melting sea ice. Unit 10A