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Natural resources: Resources, or the wealth nature has bestowed on us are essential for civilised living, and therefore, they have to be wisely used. However, it is believed th
Define Minerals - Calcium, Phosphorous and Iron? Minerals are inorganic substances. This means they are not formed by living matter and contain no carbon. Minerals used in the
What is our responsibility to nature?
how are the earth''s layers formed?
A compressed air pop-gun Use a straight piece of glass or plastic tubing of 1 or 2 cm in diameter and 15 or 20 cm in length. Make a piston by twisting some string on a pencil t
Why does a glacier move? It moves due to the huge pressure of the ice and snow lowers the freezing point of its lower layers, causing them to melt.
Interaction in the earth ecosystem: In this comparatively smaller section, we will give you the idea, that the earth as a whole is an ecosystem. Whatever you have learnt till
Advantages of Proteins Proteins are compounds of carbon, hydrogen, oxygen and nitrogen. On an average, proteins contain 16% nitrogen. Most proteins also contain sulphur and
Explain Light source - Pre-requisites of Colour Perception No colour may be detected by the eyes or by an instrument in the dark i.e. in the absence of a light source emitti
Studying broken rocks with a magnifying glass Study freshly broken rocks with a magnifying glass and try to find crystals of dissimilar minerals. The crystals of dissimilar mi
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