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Science IX | Natural Resources: Our Environment | Part 3
Natural Resources: Our Environment | Part 3 Soil Soil is the portion of the earth’s surface consisting of disintegrated rock and decaying organic material. It provides the support for many plants and animals. Thickness of soil on the earth’s surface ranges from a few millimeters to 3-4 meters. Terrestrial plants depend for their nutrients, water…
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Science IX | Natural Resources: Our Environment | Part 1
Natural Resources Introduction Planet earth differ from other planet because of existence of life here. Life is possible only on earth due to its specific environment. The conditions surrounding an organism form its environment. Thus each and everything which surrounds and affected the living organisms constitute its environment. It includes two essential components. Components and…