Meridians
a) are drawn parallel to the equator.
b) are each only half of a great circle.
c) have a maximum value of 90°.
d) never intersect at any point or points on Earth's surface.
b
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If gold were always sold by weight, could you make money buying gold at one altitude above the ground and selling it at a different altitude?
A) Yes, you could make money by buying gold at a lower altitude and selling it at a higher altitude. B) Yes, you could make money by buying it at either a lower or higher altitude, and then selling it at the other altitude. C) Yes, you could make money by buying gold at a higher altitude and selling it at a lower altitude. D) No, you couldn't make any money this way because the mass of the gold would be the same at both altitudes. E) No, you couldn't make any money this way because the weight of the gold would be the same at both altitudes.
What is the symbol for the element whose atoms have 92 protons each?
a. Nb b. U c. Zn d. None of these
The Crab nebula is
a. a planetary nebula. b. a Bok globule. c. an open cluster. d. an absorption nebula. e. a supernova remnant.
Relative Velocity: Your motorboat can move at 30 km/h in still water. What is the minimum time it will take you to move 12 km downstream in a river flowing at 6.0 km/h?
A. 20 min B. 22 min C. 24 min D. 30 min