Radiocarbon dating is useful in dating event that occurred within the past________

a) 4 thousand years
b) 40 thousand years
c) 400 thousand years
d) 4 million years
e) 40 million years


Answer: b) 40 thousand years

Environmental & Atmospheric Sciences

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The rock assemblage of sandstone, carbonate, and shale represents deposition on a(n)

____________________ continental margin. Fill in the blank(s) with the appropriate word(s).

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A) cumulonimbus B) cumulus congestus C) altocumulus D) cumulus humilis

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Which of the following lavas make up 90 percent of the total volume of lava on Earth?

A) Basaltic B) Andesitic C) Rhyolitic

Environmental & Atmospheric Sciences