To know the difference we have to explain what investment and business is. First let’s take investment and ask Wikipedia for the definition. Investment is the commitment of money or capital to purchase financial instruments or other assets in order to gain profitable returns in form of interest, income, or appreciation of the value of the instrument.
Whew. Alright how about we talk that in English. Investment is just placing cash in something in the expectation of making a benefit later on. You can invest in numerous things, such countless examples of ventures like land, real estate, stocks, bonds, mutual funds, forex, and so forth....
What is business: A business is an association or organization that provides products and services and makes benefit subsequently. We have internet business, retail (buy&sell) business and other examples of business.