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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
The Twenty Point Programme and Communication : In view of what we have discussed above, it may be useful to have a look at the Twenty Point Programme (1986), which the Governme
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Types of soils Secure samples of soil from as many places as possible and place in glass jars. Try to get examples of a sandy soil, a loam soil, a clay soil, a soil rich in dec
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Explain Cephalic Phase or Neural Phase 45% of the total gastric secretion is discharged in this phase. The flow of juice occurs before food reaches the stomach. Sight of food,
Useful Instruction : In the table given below, you can find references to the locations of materials related to this exercise. You are advised to go through these materials to und
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