A piece of iron sinks to the bottom of a lake where the pressure is 21 times what it is at the surface. Which statement best describes what happens to the density of that piece of iron?
A) Its density increases slightly.
B) There has been no change in the density of the iron.
C) Its density becomes 1/21 what it was at the surface.
D) Its density decreases slightly.
E) Its density becomes 21 times greater than what it was at the surface.
A
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