In the context of the history of the Moon, the slow surface evolution of the Moon was limited because:
A) the Moon lacks air and water.
B) the Moon has a very high escape velocity.
C) of the heat released from infalling matter.
D) of the late heavy bombardment.
A
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The amount of diffraction and thus the resolution of the telescope depends upon
A) the brightness of the object. B) the size and sensitivity of the CCD chip used for imaging. C) the design of the telescope. D) whether the telescope is a reflector or refractor. E) the wavelength used and the size of the main telescope objective lens or mirror.
Sea level fluctuated several times during the Paleozoic. Which of the following is not a representative factor for sea level rise in the Paleozoic?
A) Melting of continental glaciers. B) Ocean basins stood high on the asthenosphere due to active seafloor spreading. C) Ocean basins stood high on the asthenosphere due to slow but continuous seafloor convergence. D) The breakup of the Precambrian supercontinent.
Consider a situation where you carry a 20 N box up a flight of stairs, raising its elevation by 5 m. The increase of potential energy of the box is
a. 0 c. 100 J b. 4 J d. none of the above
____________________ waves are seismic waves that do not travel through Earth's liquid core
Fill in the blank(s) with correct word