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Demonstrating an eclipse of the moon
Use a flash light or a lighted candle in a darkened room to show the sun. Hold an 8 cm rubber ball in one hand to show the earth. Hold a 2-cm ball in the other hand to show the moon. Hold the ball demonstrating the earth in the beam of light from the flash light and observe the shadow cast by the earth. Next pass the smaller ball or moon at the back the earth into the shadow. The moon will be in eclipse while it passes by the earth's shadow.
State the harmul effects of Acidity of soil Acidity of soil may have harmful effects on plants due to the effect on enzymatic changes, reduced availability of nutrients like c
Niacin (vitamin B3) Though niacin or nicotinic acid has been known to the organic chemists since 1867 and Funk isolated it from yeast and rice polishing in order to identif
Explain the Hyperparathyroidism Hyperparathyroidism may occur due to a tumour in one or more of the parathyroid glands. In this condition, the calcium level of the blood increa
Determine the Crop factors of fertilizers Crop responses to fertilizers vary with the nature as well as the variety of the crop which in turn is related to the cation exchange
compare water stills and deionizer
What is tha nature and scope of zoology?
Water Pollution Pollution of fresh water is one of the most serious environmental problems of the world as a whole. In our country most of the rivers and lakes are polluted
Define the term - Irrigation Irrigation may be defined as the process of artificially supplying water to soil for full-fledged nourishment of the crops." In other words, it is
Why did the continents spread apart? This is because of the heat generated from the earth's interior and earthquakes - the convection currents deep within the earth due to the m
how does pulse rate increase?
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