input: Please answer the following: John and Keith are neighbors. They have been pondering about how to communicate with each other in a doomsday scenario when all the electronic devices would be useless. They connected their houses with three ducts. One of the ducts is filled with air; they called it channel A. Another duct is filled with water; they called it channel B. And the last duct is filled with iron; they called it channel C. They can now transmit sound with these channels of communication; in case, disaster strikes. Which channel would be faster, channel A or channel B ?
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output: channel B

input: Please answer the following: There are two cells inside a Petri dish in a laboratory, cell X and cell Z. These cells are from the same organism, but have different characteristics. For example, cell Z is smaller than cell X. Furthermore, scientists studying the two cells have recorded that cell X is more metabolically active than cell Z. Which cell will have more folds throughout the membrane?
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output: cell X

input: Please answer the following: Justin and Thomas are two college students conducting an experiment in their chemistry laboratory course. They are mixing together acids and bases to produce sodium based compounds. Justin conducts his reactions at a high temperature, while Thomas conducts his reactions at a lower temperature. If Thomas wanted the rate of his reactions to be similar to Justin's, should he increase or decrease the temperature of his reactions?
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output: increase

input: Please answer the following: Bill and Bob were two brothers. they were both into physical exercise, but Bill chose weight lifting, and Bob running. Which brother had more muscles contract against a resisting force?
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output:
Bill