Seyfert galaxies appear similar to normal spirals with extremely luminous cores
a. True
b. False
Indicate whether the statement is true or false
True
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The 1986 Susan Solomon expedition
A) discovered that the sun's infrared is significantly absorbed by carbon dioxide. B) confirmed that fossil fuels are causing global warming. C) discovered that solar radiation is most energetic at the frequency of yellow-green light. D) confirmed that rain-forest destruction is a significant contributor to ozone depletion. E) confirmed that CFCs are causing ozone depletion over Antarctica.
The symbol for tungsten is
a. W. b. Ti. c. Ag. d. Tb.
In general, when we refer to the time of the "Ice Age" we are referring to the
A) Jurassic. B) Tertiary era. C) Pleistocene epoch. D) Pliocene era.
The visible color of the Galactic Bulge is
A) red from the emission nebulae. B) blue from the OB associations. C) black from the dust clouds. D) yellow from the old Population II stars. E) brown from the dwarfs in the dark matter.