ECOLOGY
ENVIRONMENTAL ISSUES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Over the years, the Chinese have tried to control the Yellow River by building higher levees, digging channels and building dams. Dams have tended to be the most helpful in controlling floods, but the river’s thick silt has clogged many of them.
Detailed explanation-2: -Faced with worsening urban floods, cities in China are embracing nature and building what are termed “sponge cities.” Instead of relying on the “gray infrastructure” of levees, pipes, dams and channels, sponge cities allow urban areas to absorb water in times of high rainfall and release it in times of drought.
Detailed explanation-3: -The Yellow River in Ancient China When a series of breakwaters failed to stop the flooding, the Xia instead dug a series of canals to channel excess water out into the countryside and then down to the sea.
Detailed explanation-4: -Built by ancient Chinese people over 900 years ago, the Fushougou drainage system solves flooding and waterlogging issues in Ganzhou City.
Detailed explanation-5: -The 5, 464-km-long waterway feeds about 12 percent of China’s population, irrigates about 15 percent of arable land, supports 14 percent of national GDP, and supplies water to more than 60 cities.