For Scientists, One Bar Is

Multiple Choice

For scientists, one bar is

A) equal to the distance from one end of a continental plate to another
B) the pressure with which 1 square centimeter of the Earth's atmosphere presses down at the surface
C) the average height of the ozone layer above the Earth (before we began to deplete it)
D) the density of the material at the center of the Earth (in solid form)
E) a place to relax after a long day of making models of the Earth