The method of soil conservation in the coastal and dry regions where rows of trees are planted to check the wind movement to protect soil cover is called?1). Mulching2). Contour barriers3). Rock dam4). Shelter belts

The method of soil conservation in the coastal and dry regions where r

1.	The method of soil conservation in the coastal and dry regions where rows of trees are planted to check the wind movement to protect soil cover is called?1). Mulching2). Contour barriers3). Rock dam4). Shelter belts
Answer» This question was ASKED some where in previous year papers of ssc, and correct ANSWER was OPTION 4