Living things need air and water to live. But, with so many living things on Earth, how would there be enough air and water? To make the air and water enough, there are some cycles. The water and the oxygen and corbon dioxide cycle. The water cycle: The sun cause the water in water bodies to evaporate to become clouds, when the clouds gets too heavy, it falls down as rain or snow. The carbon dioxide and oxygen cycle: The plants give us oxygen while we breathe out carbon dioxide for plants to produce more oxygen.
Monday, April 16, 2012
Air and Water
Living things need air and water to live. But, with so many living things on Earth, how would there be enough air and water? To make the air and water enough, there are some cycles. The water and the oxygen and corbon dioxide cycle. The water cycle: The sun cause the water in water bodies to evaporate to become clouds, when the clouds gets too heavy, it falls down as rain or snow. The carbon dioxide and oxygen cycle: The plants give us oxygen while we breathe out carbon dioxide for plants to produce more oxygen.
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