The world system of interconnected ocean bottom ridges comes to a total of about ______ kilometers.

a - 600,000
b - 60,000
c - 60
d - 6,000
e - 6


b - 60,000

Environmental & Atmospheric Sciences

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What will be an ideal response?

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A) coal B) nuclear C) wind D) dung E) hydropower

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What will be an ideal response?

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

Environmental & Atmospheric Sciences