D.Desert areas are hometo some 500 million people 4.What is true accordingto the UN report? A.Compounding the threat is the melting of glaciers. B.A Large portion of water used for agriculture is coming from the river. C.A large portion of water used for domestic purpose is coming from snow-covered mountains. D.Most of 12 desert regions whose future will face a die future. 5.The report's authors urge more comprehensive water policies to manage the world's limited supplies more effectively,because that A.renewable water supplies fed to deserts by large rivers are also in danger B.the Rio Grande and Colorado River in North America the Tigris and Euphrates in Southwestern Asia and the Amu Darya and Indus in Central Asiaas being under threat C.Chad,Iraq,Niger and Syria could experience scarcity in water supplies by 2050 ifnothing is done D.All oftheabove. 6.Urgent action is needed to protect wildlife in deserts because_ A.Wildlife in deserts area are fewer and fewerD. Desert areas are home to some 500 million people. 4. What is true according to the UN report? A. Compounding the threat is the melting of glaciers. B. A Large portion of water used for agriculture is coming from the river. C. A large portion of water used for domestic purpose is coming from snow-covered mountains. D. Most of 12 desert regions whose future will face a die future. 5. The report’s authors urge more comprehensive water policies to manage the world’s limited supplies more effectively, because that . A. renewable water supplies fed to deserts by large rivers are also in danger B. the Rio Grande and Colorado River in North America the Tigris and Euphrates in Southwestern Asia and the Amu Darya and Indus in Central Asia as being under threat C. Chad, Iraq, Niger and Syria could experience scarcity in water supplies by 2050 if nothing is done D. All of the above. 6. Urgent action is needed to protect wildlife in deserts because . A. Wildlife in deserts area are fewer and fewer