"Snowball Earth" refers to
A) an extreme icehouse climate from 600 to 700 million years ago with ice sheets extending to the tropics.
B) a climate model that predicts large expanses of ice sheets due to negative feedback loops triggered by climate change.
C) the Pleistocene glaciation ending 12,000 years ago when the Laurentide Ice Sheet covered large portions of North America.
D) a hypothesized model of climate change based on massive volcanic eruptions and/or nuclear fallout creating a global winter.
E) a supercontinent that existed during the late Paleozoic and early Mesozoic eras.
Correct Answer:
Verified
Q1: A lower 18O/16O ratio in ocean sediment
Q3: 16O makes up approximately _percent of all
Q4: The interdisciplinary study of the causes and
Q5: The rapid warming associated with the Paleocene-Eocene
Q6: So-called _climates are periods with relatively warmer
Q7: Scientists use_ to study past climates,using _to
Q8: The science that studies Earth's past climates
Q9: The 16O evaporates _ than 18O,and condenses_
Q10: Which of the following is true of
Q11: The last interglacial period with temperatures similar
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