Rovers sent to Mars have discovered
A) minerals in Martian rocks that can only form in liquid water.
B) clear evidence that life once existed on Mars.
C) Mars has more craters than previously thought.
D) small pockets of liquid water lying just beneath the Martian soil.
A) minerals in Martian rocks that can only form in liquid water.
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A. -30 cm B. +30 cm C. -60 cm D. +60 cm E. +90 cm
The chef at the infamous Fattening Tower of Pizza tosses a spinning disk of uncooked pizza dough into the air. The disk becomes wider during its flight, while its rotational speed
A) remains constant. B) quickens. C) slows.
What happened in the Planck Era? At what temperature did it end?
What will be an ideal response?
Which travels with the greatest speed in a vacuum?
A) radio waves B) light waves C) X-rays D) gamma rays E) all have the same speed