Alluvial soil is rich in which of the following minerals?

1. Iron
2. Nitrogen
3. Phosphorus
4. None of the above.

Assertion (A): The Northern Plains comprises riverine soil.

Reason (R): Riverine soil is a mixture of sand, clay and silt.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Black soil is also known as ……………. .

1. Bhangar
2. Khadar
3. Regur
4. Leached

Laterite soil is mainly found in the highland areas of …………… .

1. the Himalayas
2. the Peninsular Plateau
3. the Aravalli Range
4. the Karakoram Range