Question

. Read the passage given below carefully and answer the questions that follow:
1. The practice of soil conservation involves methods to reduce soil erosion, prevent depletion of
soil nutrients, and restore nutrients, already lost by erosion and excessive crop harvesting. Most
methods used to control soil erosion involve, keeping the soil covered with vegetation.
2. In conventional farming, the land is ploughed several times and smoothed to make a
planting surface - a practice that makes it vulnerable to soil erosion. To reduce erosion, an
increasing number of farmers in many countries are using conservation - tillage farming, also
known as minimum - tillage, or no- till farming, depending on the degree to which the soil is
disturbed. Farmers using these methods disturb the soil as little as possible in planting crops.
3. For the minimum-tillage method, special tillers break up and loosen the subsurface soil
without turning over the topsoil. In no-till farming special planting machines inject seeds,
fertilizers and weed-killers into slits made in the unploughed soil.
4.In addition to reducing soil erosion, conversation - tillage and no-till farming reduce
Fuel and tillage costs and water loss from soil. They can also increase the number of
crops that can be grown during a season.
can also be reduced by 30-50 percent on gently sloping land by means of
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Answer 1

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