What type of eruption is shown in this photograph?
A) Lava flow
B) Lava dome
C) Lava fountain
D) Pyroclastic column
E) Pyroclastic flow
D) Pyroclastic column
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The natural frequency of electrons in glass occurs in the
A. ultraviolet region of the spectrum. B. visible region of the spectrum. C. infrared region of the spectrum. D. none of the above
Which region has the greatest overall gender gap in male-female earnings? A)
A) Alaska and Hawaii
B) Pacific Coast (California, Oregon, Washington)
C) New England (Massachusetts, Rhode Island, Connecticut, Vermont, New Hampshire,
Maine)
D) South/Southwest (Texas, Louisiana, Arkansas, Mississippi, Alabama)
E) mid-Atlantic (Maryland, Virginia, North Carolina)
Warm, humid air spins when drawn into a supercell thunderstorm
a. true b. false
If, at your home in the Northern Hemisphere, the surface wind is blowing from the northwest, the region of lowest pressure will be to the ____ of your home
a. north b. southwest c. east d. west e. northeast