Introduction

You are taking a walk in the forest on a beautiful Sunday afternoon. You hear this crying coming from behind a tree. You walk over and find a creature like you have never seen before. You go over and ask the creature what is wrong. The creature tells you that it is from another planet and has been sent to Earth to figure out how it keeps itself so green and colorful. Why do we depend on the water cycle? Your job is to explain how water is one of the key ingredients in keeping our Earth green and full of life. If humans didn't have water, they would be lost.

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