During which geologic time period did Pangaea form?
A) Precambrian
B) Late Paleozoic Era
C) Mesozoic Era
D) Mid-Cretaceous Era
Answer: B
Environmental & Atmospheric Sciences
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What is the most abundant component (at 82%) of Jupiter's atmosphere?
A. helium B. methane C. hydrogen D. ammonia
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What is the petroleum found in marine sediments likely to have been formed from?
a. Bacteria b. Fossilized fish c. Whale falls d. Marine algae
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The fossil record is biased because of selective preservation of organisms with ____________________ parts
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
Which of the following is the [H3O+] in pure water at room temperature?
A) 1.0 x 10^-14 M B) 1.0 x 10^-7 M C) 1.0 x 10^7 M D) 1.0 x 10^14 M
Environmental & Atmospheric Sciences