The soil which is rich in iron oxides is  _______________.

(a)

Alluvial

(b)

Black

(c)

Red

(d)

Alkaline

The soils formed by the rivers are:

(a)

Red soils

(b)

Black soils

(c)

Desert soils

(d)

Alluvial soils

__________ is a cash crop.

(a)

Cotton

(b)

Wheat

(c)

Rice

(d)

Maize

The longest dam in the world is ___________.

(a)

Mettur dam

(b)

Kosi dam

(c)

Hirakud dam

(d)

Bhakra-Nangal dam

Which crop is called as “Golden Fibre” in India?

(a)

Cotton

(b)

Wheat

(c)

Jute

(d)

Tobacco