In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Q: Question: If Jim adds more resistors to the circuit he is building for his school science project, what will happen to the overall resistance of the circuit? 
 Answer: it will increase

A: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.
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Q: Question: Reid analyzes particle speed. The heaviest particle he sees likely diffuses _____ than the lightest particle. 
 Answer: slower

A: The mass of the particles: lighter particles will diffuse faster, because on average they move faster.
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Q: Question: Between the United States, the richest nation in the world, and the Democratic Republic of Congo, the poorest nation in the world, which uses more gasoline per capita, 
 Answer: the people in the United States

A:
Richer nations use far more energy resources, especially fossil fuels, than poorer nations do.
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