Mercury features long, steep cliffs in its crust called "scarps" which probably formed
A. by erosion from high solar winds.
B. like giant wrinkles as the crust cooled and shrank.
C. after impacts from a planetesimal or asteroid.
D. as plates of crust shifted as a result of massive earthquakes at a fault.
E. from floods of running water left to evaporate after comet impacts.
Answer: B
You might also like to view...
Graphical Analysis: The graph in the figure shows the position of a particle as it travels along the x-axis. What is the magnitude of the instantaneous velocity of the particle when t = 1.0 s?
Fill in the blank(s) with the appropriate word(s).
Resistance and Resistivity: Copper wire #1 has a length L and a radius b. Copper wire #2 has a length 2L and a radius 2b. Which statement about the resistance across the ends of the wires is true?
A. The resistance of wire #1 is twice as high as that of wire #2. B. The resistance of wire #1 is equal to that of wire #2. C. The resistance of wire #1 is half that of wire #2. D. The resistance of wire #1 is four times higher than that of wire #2.
An electromagnetic wave is made up of which of the following oscillating quantities?
a. electrons only b. electric fields only c. magnetic fields only d. electric and magnetic fields
Which of these instruments is based on the theory of matter waves?
a. Microwave oven b. X-ray tube c. Electron microscope d. Cathode ray tube