Industry 

It refers to that economic activity which undertake the production of goods and services.

1. Primary industry 

It refers to that industry which produces unrefined raw material out of which finished products are made.

2. Secondary industry 

It refers to that industry which use is the raw material produced by primary industry and change them into finished item.

3. Tertiary industry

It refers to that industry which produces services.

(a). Hindrance of finance: It is removed with the help of the banking industry. 

(b). Hindrance of risk: It is removed with the help of insurance industry.

(c). Hindrance of communication: It is removed with the help of advertisement industry.