to provide a place for merchants to sell goods
This is for history class? I'd say science class. Anyways,
The answer is c, due to the fact that the law of matter consevation states that no matter can be created or destroyed. It is not D due to the fact that water can infact change into a gas, or solid, but it's still water, therefore being at different forms during the day.
Answer:
Approving or Vetoing a bill
Explanation:
When the bill comes out of the legislative for the first time, it goes to the president and he can either approve the bill or veto it, depending on if he thinks its good enough to become a law.