Fluids in a metamorphic reaction
A) speed up the process.
B) neutralize the process.
C) slow down the process.
D) have no effect on the process of metamorphism.
Answer: A
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You could determine the index of refraction for visible light of a dark but reflective medium such as black glass by measuring the
a. angles of incidence and refraction. b. angle of reflection for an arbitrary angle of incidence. c. angle at which reflected light is completely polarized. d. smallest angle at which X-ray diffraction occurs in the glass. e. smallest angle at which diffraction occurs for visible light when a diffraction pattern is scratched onto the surface.
Why are there few odors emanating from a properly managed composting toilet?
A) Tight seals prevent the escape of odors. B) Odors are absorbed by a layer of water. C) Decomposition is aerobic. D) The ventilation system steers odors through a carbon filter.
Earth and Venus both presumably had similar gases outgassed from their volcanoes. Briefly explain how their atmospheres ended up so different
What will be an ideal response?
The age of stars in a cluster can be determined by
A) finding spectroscopic binaries in the cluster. B) determining the main sequence turnoff point. C) finding pulsating variable stars in the cluster. D) counting the number of stars in each spectral class. E) fitting the position of the main sequence to the Sun.