B.

Kolkata

C.

Bangalore

Three steps to minimise environmental degradation caused by industrial development in India are mentioned below:

i. By using the natural resources judiciously and minimum usage of electricity.

ii. By treating wastewater through primary, secondary and tertiary treatment.

iii. By planting green belts in and around industries for promoting ecological balance and holding afforestation drives.

Following are the challenges faced by jute industries in India : 
(i.) Prices of jute textiles are so low that industrialists hesitate to set up these industries. 
(ii.) International demand of jute goods is falling sharply which is not an encouragement for these industries. 

The government has taken the following steps to boost Jute production : 
(i.) Government has made it compulsory in the country to use jute packaging. 
(ii.) In 2005, our government formulated the National Jute policy with the following aims: 
To expand production 
To enhance quality 
To provide good prices to the farmers 
To enhance yield per hectare.

C.

Ownership of enterprises

Chotanagpur plateau has the maximum concentration of iron and steel industries. It is largely, because of the relative advantages this region has for the development of this Industry. These include:

(i) low-cost of iron ore

(ii) High-grade raw materials in proximity

(iii) cheap labour

(iv) vast growth potential in the home market