The type of law that regulates business industry and individuals is called Companies Law. This law covers almost every type of business, corporations and partnerships.
Administrative Law
an industry is a type of business, like the automobile industry. they make automobiles, or cars
To start a business in this industry, you may need a specific type of license or permit, such as a business license, professional license, or industry-specific permit. It is important to research and comply with all necessary licensing requirements before starting your business.
A mining industry is a mining business or a type of job out of all the other jobs.
Service industry
partnership
An industry is a type of business in the economy while a firm is a unit or entity carrying a portion of the business in an economy.
Corporation
That depends on the type of business/industry involved.
The definition differ based on the industry. If you search for the article "Summary of Size Standards by Industry Sector" on the sba.gov website, you will find the exact definitions for the industry and type of business you're interested in.
partnership
A monopoly may impact an industry significantly, but there isn't other businesses within an industry when a true monopoly exists. A market leader is a business that may affect the prices within an industry.