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A. But they still don't become desert B. But more and more of the earth is becoming desert all the time C. Without the plants D. Plants don't let the wind blow the earth away E. They want to bring water to the deserts |
Scientists are trying to turn deserts into usable land again. , so people can live and grow food. They are learning a lot about deserts. . Scientists may not be able to change these deserts. People are doing bad things to our planet.
Some places don't get much rain. . This is because green plants are growing there. Small green plants and grass are very helpful for dry places. Plants don't let the hot sun make the soil too dry. . When a little bit of rain falls, the plants hold the water. , land can turn to desert much more easily.
