What the difference between commerce and Business?

Commerce means the buying and selling of goods and services , while business is an organization or entity engaged in commercial or industrial among others. Commerce is the exchange of goods and services while business means the collection of efforts of individuals with an aim of making profits.

In a very brief and precise wording;

"Commerce" is only an activity of some "business", which usually contains lot of different other activities.

Business can be an entity,but commerce is related to trade and trade related activities.commerce is focuses on buying and selling part of a business,where as business is just for buying and selling.