List 3 reasons why renewable and inexhaustible energy is not used more

Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false