DESPERATE. I WILL GIVE BRAINLIST AND THANKS Many people think that biofuels are the solution to a lot of the problems of climate change, but others disagree. What requirements would biofuels have to meet if they were to be really effective at replacing gasoline in motor vehicles?

Biofuels must be compatible with existing engine and fuel requirements

Explanation:

Biofuels must be compatible with existing engine and fuel requirements; there are often similar properties between biofuels and their conventional petroleum counterparts. Ethanol is discussed elsewhere. Biobutanols are volatile alcohols irritating to eyes, respiratory tract, and skin; overexposure can produce central nervous system depression.

answer: c

explanation: i have done that passage before

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.