6. Why are airports extremely busy ? 7. Mention some of the problems caused by large cities and how can we solve them.

8. What are the reasons/factors for drastic increase in population?.
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6 depends on which airport and its location. For example Miami International is always flooded with arrivals and departures for both commercial and cargo

7 Some problems can be heavy traffic hold ups sanitation issues and homelessness

8 birth rates have increased

Explanation:

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.

that is alot i do not no