Question

what is commerce? and write components of commerce?

Answer 1

commerce refers to the sum total of all those activities which are engaged in the removal of hindrance of person place time race finance and information in the exchange of commodities.
component of Commerce on the basis of the definition of Commerce it can be divided into the following two parts
1. trade
2. auxiliaries to trade

Answer 2

Commerce relates to "the exchange of goods and services, especially on a large scale.” Commerce includes legal, economic, political, social, cultural and technological systems that operate in any country or internationally. 
Components of commerce: 

It includes:

    Trade 

      Aids to trade 

Trade: Trade means sale and purchased of goods. It can be further classified into two categories like home trade and foreign trade. Home trade means when sale and purchased of goods within boundaries of country. Foreign tradeis a trade between two or more than two countries. Home trade can also further classified into two categories like wholesaler and retailer. Wholesaler means when goods are purchased from producer in large quantity and are sold in small quantity. Retailer means goods are purchased from wholesaler and are sold to consumer in a very small quantity. Foreign trade is classified into three categories like import, export, and interport. Import means when goods are sold to foreign countries. Export means when goods are purchased from foreign countries. Interpot means import of raw material for the purpose of re-exporting after convert into finished products.

Aids to trade: there are certain agency which facilitates trade is called aids to trade. 

1.      Transport
2.      Warehousing
3.      Insurance
4.      Banking
5.      Advertisement 
6.      Communication 

  Transport: generally, in the modern setup place of production is far wide for the place of production. The gap between the production and consumption is removed by transport. Transport removes the difficulty of placed.

Warehousing: generally, in the modern setup place of production is far wide for the place of production. So we can store the goods in the ware house. E.g.: sugar, wheat is produced in a particular season but their demand is throughout year. So with the help of ware house we can easily store the goods and satisfy our consumer demand. 

Insurance: when goods are properly insured by the insurance company then any loss occurred like theft, fire and natural calamity then insurance company provides compensation for all types of losses.
Banking: when any person start the business then finance plays a major role for the successful enterprise. As blood is necessary for human being as finance is required for every business. Banking removes the hindrance of finance. Bank provides loans and overdraft which removes the hindrance of finance. 

Advertisement: when lack of knowledge about goods to the customer then with the help of advertisement tells us about the availability uses of goods. It removes the hindrance of knowledge.