This data record from ice cores shows
A) increased temperatures have frequently been associated with elevated methane and carbon dioxide concentrations.
B) lower temperatures have frequently been associated with elevated methane and carbon dioxide concentrations.
C) increased temperatures have frequently been associated with reduced methane and carbon dioxide concentrations.
Answer: A
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Which biome contains the highest amount of biodiversity?
A. tropical rain forest B. temperate deciduous forest C. chaparral D. arctic tundra
When a social group is unresponsive to changing circumstances and innovation, it is said to exhibit:
A) cultural divergence B) cultural convergence C) cultural isolation D) cultural lag
What is one additional approach, besides the study of the baseball, that geologists use to gain knowledge about Earth's interior?
A) Geologists infer the interior composition at deep levels from calculations of Earth's density. B) Geologists collect and study data from volcanoes, mainly about the lava, to gain knowledge about the interior. C) Geologists use energy from earthquakes to construct images of Earth's interior. D) Geologists go as far into the center of the earth as possible by exploring in drilled boreholes and mines, going as deep as possible.
The Anatolian and Kurgan Hearth theories are both an explanation of language diffusing through
A) warfare. B) agriculture. C) migration. D) colonization. E) sea voyages.