How many histones are part of a nucleosome?

A) 1
B) 2
C) 4
D) 8


D

Environmental & Atmospheric Sciences

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Line A in the above map represents

A) the Prime Meridian B) a line of longitude. C) the Equator. D) the international date line.

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Climate evidence dating back 160,000 years indicates a close correlation between the concentration of carbon dioxide in the atmosphere and global temperature.

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

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The Green Revolution depends on several factors for success. What is NOT one of those?

A) machinery B) new seeds C) chemical fertilizers D) small-scale farming E) all of the above are factors needed to succeed

Environmental & Atmospheric Sciences

An estimated ________ percent of the Earth's precipitation occurs over land

A) 22 B) 86 C) 14 D) 8 E) 78

Environmental & Atmospheric Sciences