Explanation:
It is a place where shares of pubic listed companies are traded. ... A stock exchange facilitates stock brokers to trade company stocks and other securities. A stock may be bought or sold only if it is listed on an exchange.
Answer:
I am not sure but I think it is 2
Definition-
Real property ,the expansion, redevelopment, pollutant, or contaminant.
They can be located anywhere and can be very small