The quickest and easiest way to save money on energy bills is to
A. Modify your energy-using behavior
B. Put new insulation in your home
C. Install a new furnace
D. Buy a more efficient automobile
E. Install a new water heater
Answer: A
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Referring to the figure below, at which point is there a red-coloured band of light in the secondary rainbow?
A. point A B. point B C. point C D. point D
Our alternating days and nights are caused by:
a. Earth rotation. b. Earth revolution. c. both Earth rotation and Earth revolution. d. none of these
Seawater with a salt content of 35 g/kg has a freezing point ________.
A. below its temperature of maximum density B. at 0°C C. at its temperature of maximum density D. above its temperature of maximum density E. None of these is correct; this water does not freeze.
Resource partitioning tends to lead to a high degree of ________ in species.
A. Divergent evolution B. Convergent evolution C. Specialization D. Evolution E. Generalization