What is the situation about the desertification in Africa?A.The deserts are replaced with grasslandsB.The deserts are expandingC.the deserts are moving northwardsD.the deserts are being deserted
What is the situation about the desertification in Africa?
A.The deserts are replaced with grasslands
B.The deserts are expanding
C.the deserts are moving northwards
D.the deserts are being deserted
B.The deserts are expanding
C.the deserts are moving northwards
D.the deserts are being deserted
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BScientists are trying to make the deserts into good land again． They want to，bring water to the deserts． But more and more places of the earth is becoming deserts all the time， Scientists may not be able to change the deserts． Scientists think that people make deserts． People are do-ing bad things to the earth．Some places on the earth don-t get very much rain． But they still don-t become deserts．This is because some green plants are growing there． Small green plants and grass are very helpful to dry places． Plants don't let the wind blow the earth away． When 8 little bit of rain falls，the plants hold the water． Without plants，the land can become a desert much more easily．( )26． Why can the land become a desert?A． Because some places don't get very much rain．B． Because plants don-t let the hot sun make the earth even drier．C． Because people don't keep the earth well．D． Because scientists haven-t learnt enough about the deserts．
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