What are commodity and equity.

A commodity is an economic good or service that has full or considerable replaceable: that is, the market treats instances of the good as equivalent or nearly so with no regard to who produced them. The price of a commodity good is typically resolute as a function of its market as a whole: well-established physical commodities have actively traded spot and derivative markets. Most commodities are raw materials, basic resources, or agricultural products, like iron ore, sugar, or rice.
A speedy demand for a commodity can see increases in prices significantly from time to time. It is the best way or gives lots of chance to make money quickly and safely.
Change or Diversification is when you invest in a variety of industries that give results differently to changes in the market. It will keep your annual profit stable and also avoid big losses.
Equity
Assets - Liabilities = Equity.
Equity is the value of an asset less the amount of all liabilities on that asset. If someone owns a car worth Rs. 15,000 is an asset but owes Rs. 5,000 on a loan against that car is a liability, the car represents 10,000 of equity. Equity can be negative if liabilities exceed assets.
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