Maharashtra State PSC Model Paper 1

The correct answer is 1, 2, 3, 4, 5, 6.

• There are the following methods of soil conservation:
  • Mulching: The bare ground between plants is covered with a layer of organic matter like straw. It helps to retain soil moisture.
  • Contour barriers: Stones, grass, soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.
  • Rock dam: Rocks are piled up to slow down the flow of water. This prevents gullies and further soil loss.
  • Terrace farming: These are made on steep slopes so that flat surfaces are available to grow crops. They can reduce surface run-off and soil erosion.
  • Intercropping: Different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash.
  • Contour ploughing: Ploughing parallel to the contours of a hill slope to form a natural barrier for water to flow down the slope.
  • Shelter belts: In the coastal and dry regions, rows of trees are planted to check the wind movement to protect soil cover.