The most energy-demanding activity in a typical home is
A. lighting.
B. computers and electronics.
C. appliances.
D. heating and cooling.
Answer: D
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A connected loop of deep and shallow ocean currents transports warm and cool water to various parts of the earth
Indicate whether the statement is true or false
A smooth piece of paper:
A) reflects all light in the same direction. B) refracts light. C) is rough enough to scatter light in all directions. D) reflects light uniformly.
The Indian Ocean Dipole (IOD) is air mainly descending at ________ and rising at ________.
A) A; C
B) A; D
C) C; A
D) C; B
A bullet is dropped into a river from a very high bridge. At the same time, another bullet is fired from a gun, straight down towards the water. Neglecting air resistance, the acceleration just before striking the water
A) is greater for the dropped bullet. B) is greater for the fired bullet. C) is the same for each bullet. D) depends on how high they started. E) none of the above