Find the definitions of the following words or expressions in terms of business.
1-Private sector
2-Sole proprietorship
3-Legal difference
4-Business activities
5-Partnership
6-Group of individuals
7-Businesses
8-Corporation
9-Incorporated business
10-individual
11-Owners
12-Unincorporated business
13-Company or firm
14-Legal person
15-Separation of ownership and Control
16-Corporation
17-Take over
18-Private company
19-Liquidation
20-management
21-Public company