Why does increasing the amount a greenhouse gas increase the temperature of a planet?
A) More greenhouse gas means that air molecules are heavier on average.
B) More greenhouse gas means more absorption of visible light from the Sun.
C) More greenhouse gas means higher atmospheric pressure.
D) More greenhouse gas means more absorption of infrared light emitted by the planet.
D) More greenhouse gas means more absorption of infrared light emitted by the planet.
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Synchrotron radiation is produced
a. in planetary nebulae. b. by red dwarfs. c. in massive stars as their iron core collapses. d. in supernova. e. by neutrinos.
The lowest places on Earth's surface are called __________ trenches
a. plateau b. mid-oceanic c. deep-sea d. none of these
Steven Weinberg, Abdus Salam, and Sheldon Glashow shared the 1979 Nobel prize in physics for their development of a(n)
a. electroweak theory b. GUT c. quark theory d. generalized theory of relativity e. theory of strangeness
What kind of weather is usually associated with a high-pressure cell? Why?