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Desert tundra, or cold desert, occurs on the Arctic edges of North America, Europe, and Asia. The word tundra comes from a Finnish word tunturia, which means barren land. In the desert tundra, the temperatures are almost always freezing, and they cause an environment in which plant life is virtually impossible. Plant life is made impossible by two different extreme conditions, either a lack or an overabundance of water. During at least three quarters of the year, the Arctic is frozen. The Arctic is far from the equator. This means the sunlight reaching the soil contains less energy than at the equator. The existence of ice rather than water for the majority of the year means that vegetation does not have enough moisture for growth to take place. During the period of time when the temperature increases enough for ice to melt, there is generally a large volume of water. Too much water and not enough drainage through the frozen subsoil make it difficult for plants to grow. Despite this, about 1,700 kinds of plants grow on tundra, including reindeer mosses, liverworts, and grasses. The 400 varieties of flowers found add a wide range of colors. 28. Which of the following is the best title for the passage? A. Where Desert Tundra is Found B. The Weather in the Arctic C. The Effect of Desert Tundra on Plant Life D. The Variety of Plant Life in Desert Tundra 29. According to the passage, desert tundra is found...... . A. throughout North America, Europe, and Asia B. in Antarctica C. on the Arctic borders of the northern continents D. at the North Pole 30. According to the passage, what makes plant life almost impossible in areas of desert tundra during most of the year? A. Excessive water on the plants B. A lack or an overabundance of water C. The increase in temperature D. The lack of ice 31. Which of following does NOT happen when the weather heats up? A. Plants and trees grow well. B. The ice melts. C. There is not enough drainage. D. There is too much water. 32. According to the passage, why is it impossible for the water to drain after it melts? A. The land beneath the surface is still frozen. B. The temperature is too high. C. The period of time is too short. D. The vegetation is flourishing các bn giúp mình vs,đừng làm bừa để lấy điểm nha,mình report đó