Which of the following green manure crops contains highest amount of nitrogen ?

  1. Dhaincha
  2. Sunhemp
  3. Cow Pea
  4. Guar

The soil formed by the deposition of silt brought by rivers is :

  1. alluvial soil
  2. red soil
  3. black soil
  4. pod soil

Terracing is an affective method of soil conservation:

  1. Plains
  2. Hilly areas
  3. Desert areas
  4. Riverine areas

‘Sabarmati’ and ‘Jamuna’ are two new varieties of –

  1. Rice 
  2. Wheat 
  3. Mustard 
  4. Mustered 

Deforestation causes:

  1. Pollution
  2. No floods
  3. Soil erosion
  4. None of these