Answer:
The main difference between these business is the investment and number of people.
Step-by-step explanation:
A micro enterprise is an enterprise where investment in plant and machinery is less than one million whereas small enterprise has the investment less than 15 million in plant and machinery. A medium enterprise is an enterprise where the investment in plant and machinery is more than 15 million and less than 100 million. Large scale enterprises is a type of enterprise have more employees and more complex management than in the medium-scale businesses. Public enterprise is a type of business organization wholly or partly owned by the state but controlled through a public authority.