Choose your answer from:
(A). energy usage
(B). consumers
(C). ventilation
(D). views
(E). survival
(F). temperature
(G). Quality of life
(H). water
Q: Fact 1: Energy is used for heating a building by a heating system. Fact 2: Each system is equipped with a control, a heat producer, a heat exchanger, and a heat distributor. Given the two facts above, buildings use a combination of production, exchange, and distribution of energy to for what?
A:
(F).