Multiple Choice
Evidence from proxies indicate eight major oscillations in global temperatures over the past 800,000 years,most likely the result of
A) rising and falling sea levels that greatly impact photosynthetic activity.
B) variations in solar activity that produce different levels of radiation.
C) Milankovitch cycles of periodic variations in Earth's orbits around the sun.
D) lunar cycles in which the moon orbits at different distances from the Earth.
Correct Answer:
Verified
Correct Answer:
Verified
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