Why couldn't life originate on the Moon?
a. too many craters
b. not within a habitable zone in the Solar System
c. lack of atmosphere to keep water on its surface
d. lack of oxygen in its atmosphere
e. too cold a surface
c
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A person has a mass of 45 kg. How much does she weigh?
A) 4.6 N B) 20 N C) 99 N D) 220 N E) 440 N
How does a lenticular galaxy differ from a spiral galaxy?
A) It has no bulge. B) It has an elongated bulge resembling a bar more than a sphere. C) It is flatter in shape. D) It has no gas or dust. E) It has no spiral arms.
Exclusion Principle: Which one of the following is the correct electronic configuration for the sodium atom, which has 11 electrons?
A. 1s1 2s2 3p6 2s2 B. 1s2 2s1 3p6 2s2 C. 1s1 2s2 2p6 2s2 D. 1s2 2s2 2p6 3s2 E. 1s2 2s2 2p6 3s1
A baseball bat has a thick, heavy barrel and a think, light handle. If you want to hold a baseball bat on your palm so that it balances vertically, you should
A. put the end of the handle in your palm , with the barrel on top B. Put the end of the barrel in your palm with the handle up C. The bat will be equally easy to balance in either configuration