He interviewed explorers and propagandized their stories in a popular book.
Answer: 30
Explanation: I can't really explain it
Answer: The cheese melts on a hamburger because the burger has more thermal energy than the cheese, and because thermal energy travels from a warmer substance to a cooler substance, the cheese will melt due to substance reaction, and conduction coming from the hamburger onto the cheese when the cheese is placed on the hamburger.
Explanation: Because of thermal energy transfer. I hope I helped! :)
Answer: Leif Erikson was a Norse explorer from Iceland and is considered the first known European reach North America before Christopher Columbus.
Explanation:
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The role of the President pro tempore of the Senate is mostly ceremonial as he is appointed to work in the place of a vice president when he is not available and take everything in control.
Mostly the power is in the hands of the other leaders and the senators but in the absence of the vice president the President pro tempore of the senate takes his place and certain duties are authorised which he can perform during that time.
