11.

Give the names of four important iron ores found in India.

Name the following:
(i) An offshore oil field in the Gulf of Cambay.
(ii) An oil refinery in Bihar.

(i) Name the state that produces the largest amount of limestone.
(ii)State the two uses of limestone

State an important industrial use of:
(i) Manganese
(ii) Coal
(iii) Aluminum

What is mixed farming? Mention any one benefit of mixed farming.

Give the Geographical requirement for the cultivation of Sugarcane.

Explain the following terms and name the crop with which each one is associated:
(i) Retting
(ii) Ratooning
(iii) Ginning

Give geographical reason for the following:
(i) Regular pruning is essential for tea bushes.
(ii) Coffee beans are roasted.
(iii) Millets are known as dry crops.

The Iron and Steel industry constitutes the backbone of modern industrial economy’. Give two reasons to justify the statement.

(i) Name an iron and steel industry set up in Orissa with the help of a famous German firm. 
(ii)From where does the industry named in b(i) get its iron ore and manganese?