Ocean sediment cores provide a climate record for the past ________ years

A) 800,000
B) 2 million
C) 10 million
D) 70 million


D

Environmental & Atmospheric Sciences

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What is the typical depth of light penetration in the open ocean?

a. 40 meters b. 100 meters c. 330 meters d. 600 meters

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Distinguish the differences you would see between intrusive and extrusive igneous rocks formed from the same magma

What will be an ideal response?

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How many times in the last century have meteorites struck and killed people in North America?

a. none b. only one c. only a few (less than five or so) d. about 15 e. about 50 (one every couple of years)

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Beach drifting occurs in the swash zone

a. True b. False Indicate whether the statement is true or false

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