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How to prevent the erosion of topsoil
Use the trays constructed for the experience above.
(a) Fill the trays with loose soil and tilt everyone the similar amount. Make furrows with a stick running up and down the hill in single box and across the hill in the other box. Sprinkle each the similar amount. Observe the erosion in every case and the run-off water.
(b) Again fill the trays with loose soil. Water them unless there are well-defined gulleys formed from the running water. Now block the gulleys at intervals with little stones and twigs. Again water and observe the effect of blocking the gulleys
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Q.What are the two forms of oxygen found in the atmosphere? The two forms of oxygen found in the atmosphere are: (i) Diatomic molecular form with chemical formula O 2 . (i
Here this study gives the health hazard data and the treatments for some of the compressed gases. Generally the standard procedure in gas based accidents is as follows: (1) Remo
QUESTION (A) Define Psychology (B) Why is psychology considered a science? (C) (i) Clinical and Counselling psychology sound similar. How do they differ? (ii) Discuss a
Define the process of Soil acidity Acid soils are made more suitable for agricultural use by liming which raises the soil pH. Soil acidity is commonly decreased by adding carb
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Requirements Experimental animals Digging and scooping equipment Disposable bags
Explain Myocardium Myocardium :- The middle layer of the heart wall.
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