A starburst galaxy is a galaxy that:
A) is undergoing a rapid surge of white dwarf explosions.
B) is undergoing a rapid surge of star formation.
C) has never interacted with another galaxy.
D) is undergoing a rapid burst of supernovae explosions.
B
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A primitive unit cell contains ______________lattice point(s).
Fill in the blank(s) with the appropriate word(s).
Now study Figure 10.39, which shows global temperatures from 1880. Focus on the period since about 1960, and compare what you notice about the temperatures to what you've learned about carbon dioxide levels in Questions 1—4. Which of the following statements best describes the relationship?
A) The warmest years correlate exactly with the years of greatest CO2 abundance, indicating that CO2 is the single most important factor controlling global temperature changes. B) The warmest years correlate roughly with the years of greatest CO2 abundance, indicating that CO2 is important but other factors also contribute to global temperature changes. C) The warmest years are not correlated with years of high CO2 abundance, indicating that factors other than CO2 have the most important effect on global temperature changes.
Suppose you see a photo showing Jupiter half in sunlight and half in shadow (that is, a first quarter Jupiter). This photo might have been taken by
A) the Galileo spacecraft that orbited Jupiter in the 1990s. B) the Hubble Space Telescope (which orbits Earth). C) the Keck Telescope on Mauna Kea, Hawaii. D) the Arecibo Radio Telescope in Puerto Rico.
In the future, adaptive optics will greatly enhance the resolution of the Hubble Space Telescope
Indicate whether the statement is true or false