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Biology, 28.09.2019 19:20 kob3965

Which best describes why heat pumps are reversible? a. they can heat and cool an indoor space. b. they involve a metal expanding or contracting against another. c. they combust and can also add coolant. d. they allow a piston to move up and down.

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Which best describes why heat pumps are reversible? a. they can heat and cool an indoor space. b. t...

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