Resources that take long geological time for their formation are called:
  • Renewable resources
  • Reserve
  • Community resources
  • Non-renewable resources
Land that is left uncultivated for more than five agricultural years is called:
  • Pasture land
  • Culturable waste land
  • Barren land
  • Current fallow
Area sown more than once in an agricultural year plus net sown area is known as:
  • Net sown area
  • Forest cover
  • Waste land
  • Gross cropped area
The total degraded land in our country is:
  • 133 million hectares
  • 130 million sq. km.
  • 140 million hectares
  • 130 million hectares
In which of the following States mining has caused severe land degradation?
  • Gujarat
  • Jharkhand
  • Kerala
  • Uttaranchal
The main cause of land degradation in Punjab, Haryana and Western Uttar Pradesh is:
  • Mining
  • Over irrigation
  • Deforestation
  • Over grazing
Which is the most common soil of Northern India?
  • Black soil
  • Laterite soil
  • Alluvial soil
  • Red soil
Red soil is mostly found in:
  • Parts of Jammu & Kashmir
  • Upper Ganga Plains
  • Eastern and Southern part of Deccan Plateau
  • None of the above
Red soil is reddish in colour due to:
  • high clay content
  • presence of kankar nodules in the subsoil
  • diffusion of iron in igneous and metamorphic rocks
  • high moisture content
Which of the following is not important for soil formation?
  • Relief
  • Parent rock
  • Climate
  • Duration of day
Black soil is also called:
  • Bangar
  • Khadar
  • Regur
  • Humus
Black soils are common in:
  • Deccan trap region
  • Kashmir Valley
  • Ganga Valley
  • Northern Plains
Laterite soil is very useful for growing:
  • Rice, wheat and mustard
  • Tea, coffee and cashewnut
  • Pulses, sugarcane and resin
  • None of the above
Black soil is deficient in
  • Calcium carbonate
  • Magnesium
  • Potash
  • Phosphoric contents
Which of the following soils has self-aeration capacity?
  • Alluvial
  • Red soil
  • Black soil
  • Mountain soil
Ploughing along the contour lines to decelerate the flow of water down the slopes is called:
  • Strip cropping
  • Sheet erosion
  • Contour ploughing
  • Terrace cultivation
Which of the following is not a measure for soil conservation?
  • Strip cropping
  • Terrace cultivation
  • Shelter belts
  • Overdrawing of ground water
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