Earth’s crust is thinner than its mantle.?

a. True
b. False


ANSWER: True

Environmental & Atmospheric Sciences

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Pentane and 2-methylbutane have third isomer, neopentane. What is the IUPAC name of this isomer?

A) 2,2-dimethylpropane B) 2-methylisobutane C) 2-ethylpropane D) none of these

Environmental & Atmospheric Sciences

Using Figure 9.15 in your textbook, what is the ratio of cubic kilometers of water in ice to water in rock-forming minerals?

A) 27.5 million: 420 million B) 420 million: 27.5 million C) 420 million: 8.35 million D) 1.35 billion: 420 million

Environmental & Atmospheric Sciences

A hurricane _______________ indicates that a hurricane is expected in the area within 24 hours

Fill in the blank with correct word.

Environmental & Atmospheric Sciences

Each year, at least 250,000 children under 6 years of age go blind from a lack of ____.

A. iron B. calcium C. vitamin A D. vitamin B E. vitamin C

Environmental & Atmospheric Sciences