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সোমবার, ১৫ এপ্রিল, ২০১৩
Why Does the Earth Have Rain Forests and Deserts?
You'd think with all the tumultuous weather and winds the Earth experiences, the planet would be covered in a fairly even mix of green space. But it's not. Some parts are covered in fertile rain forests, while others are barren deserts. And it's all because of a weather effect known as Hadley Cells. More »
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