11.

Explain the formation of Laterite soil. Why is Laterite soil not suitable for cultivation ?

Give one difference between the following:

(i) Khadar soil and Bangar soil.

(ii) Sheet erosion and Wind erosion.

Mention two characteristics of Black soil. Why is this soil agriculturally important ? 

Give reason as to why :

(i) Red soil is red in colour.

(ii) Large tracts in Maharashtra are covered with black soil.

(iii) Man is largely responsible for soil erosion.

 Name two states with large deposits of coal. Name the coalfields in the states that you have named.

What is lignite ? Name one place in India where it is mined. 

(i) Mention two uses of mineral oil.


(ii) Name an old and a new mineral oil producing area.

(i) Mention two reasons why minerals are important ?

(ii) Name one area in Orissa and one area in Chattisgarh where iron ore is mined.

(i) When are kharif crops (1) sown and (2) harvested ?

(ii) Name a cash crop which is also a kharif crop.

 India is the largest producer of tea. State the climatic factors necessary for its growth.