What is the name of the supercontinent that preceded Pangaea?

A) Amasia
B) Rodinia
C) Challenger
D) Africana


Answer: B

Environmental & Atmospheric Sciences

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Starch and cellulose are examples of ________

A) lipids B) carbohydrates C) sterols D) nucleic acids E) proteins

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Forchhammer was the first to observe that seawater contains fewer silica and calcium ions than river water

a. True b. False

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Europe and North America have fertility rates below replacement rate.

Answer the following statement(s) true (T) or false (F)

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Earth satellites in an elliptical orbit have greatest speeds when

A. farthest from the Earth. B. nearest the Earth. C. neither of these D. can't say

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