Where do we find the youngest parts of Earth's crust?
A. at the tops of mountains
B. subduction zones
C. at the bases of mountains
D. ridges on the ocean floor
E. None of these choices are correct.
Answer: D
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Two single wave pulses are sent along a rope. Both have the same height, but one is upward and the other is downward. As they are passing through each other, they will momentarily cancel each other out
What becomes of their energy as they are passing through each other? A) It is still there in the form of kinetic energy of the rope. B) It is momentarily destroyed due to destructive interference. C) It is still there in the form of thermal energy of the rope and air. D) It is still there in the form of gravitational energy of the rope. E) Actually the pulses contained no energy to begin with.
Spectra are often represented as graphs of:
A) distance versus luminosity. B) temperature versus density. C) intensity versus wavelength. D) brightness versus darkness.
Consider the n = 9 shell. (a) What is the largest value of the orbital quantum number, l, in this shell? (b) How many electrons can be placed in this shell?
What will be an ideal response?
The ____________ was a large cyclonic storm in the atmosphere of Neptune observed by Voyager 2
Fill in the blank(s) with correct word