John works as a mechanical engineer in the auto industry. He is testing three surfaces, surface A, surface B, and surface C for their usability. Surface A has a gentler slope, surface B has a steeper slope, and surface C doesn't have any sloping. He needs to figure out advantages and disadvantages of each slope. Which surface would have shorter sloping surface compared to its height, surface A or surface B?
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Answer: surface B

Company A was a refinery and managed petroleum products. Another company, named company H, produced and distributed electricity using wind power. Both companies strive to be more efficient and to pollute less. Which company didn't make a mixture of compounds containing several carbon atoms in a chain?
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Answer: company H

Rob is testing the properties of gas. To that end, he experimented with a cylinder of gas in three stages, stage A, stage B, and stage C. In stage A he kept the gas in room temperature. In stage B he heated the gas up. And in stage C he cooled the gas down. In which stage the kinetic energy of the gas molecules would increase, stage A or stage B?
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Answer:
stage B