Class VII

Amazon Basin is used for growing soybean and cattle farming in
  1. Nigeria
  2. New Zealand
  3. Brazil
  4. Australia
Technique of growing crops without soil is classified as
  1. geoponics
  2. tetraponics
  3. hexapodies
  4. hydroponics
Percentage of land which is habitable and arable is
  1. 10%
  2. 12%
  3. 30%
  4. 50%
Abandoned land that is not good for cultivation anymore is classified as
  1. catchment land
  2. dykes
  3. derelict land
  4. polder
. Intensive cultivation on land by which soil fertility is destroyed and lost is called
  1. desertification of land
  2. cloud seeding of land
  3. catchment of land
  4. over cultivation of land
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