The desired relative humidity in an occupied space is in the __________% to __________% range, with ___________% being ideal.

What will be an ideal response?


40%, 60%, 50%

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Nontariff barriers include which of the following?

A) Export subsidies, ad valorem tariffs and price supports B) Export subsidies, specific tariffs and restrictions at national borders C) Price supports, import quotas and favorable government credit terms D) Price supports, favorable credit terms for exporters, specific tariffs and ad valorem tariffs

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One-third of all threatened and endangered species live only in wetlands

Indicate whether the statement is true or false

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Food chains favor food stamps

Indicate whether the statement is true or false

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Some water-source heat pumps contain a separate coaxial coil for heating domestic hot water. The heat for the domestic hot water comes from:

A) De-superheating the hot gas leaving the compressor. B) Subcooling the liquid leaving the condenser. C) A submersion-style electric heater. D) Using the water heating coil instead of the loop in cooling.

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