Basics Types And Uses Of Water (H2O)
Water is a essential for living things. The base of whole world is on water. We are living here in this world because, the ratio of earth is about 71% included water and just about 29% is other stuff. » Read more
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Water is a essential for living things. The base of whole world is on water. We are living here in this world because, the ratio of earth is about 71% included water and just about 29% is other stuff. » Read more