How does thermal energy transfer when a room is heated by a furnace? hot air is absorbed by the objects in the room; cold air expands and rises.

hot air is circulated through the room; the hot air rises, and cold air falls.

hot air makes direct physical contact with the objects in the room and rises.

hot air is transmission by electromagnetic waves; the hot air rises and falls.

what is the question here. i think you messed up.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.