The lower atmosphere is a homogeneous mixture of gasses with nitrogen and oxygen being the most

abundant. Indicate whether the statement is true or false.


ANS: T
For the most part, the lower atmosphere is homogeneous. There are additional elements and
compounds present in the atmosphere, but they only comprise 1% of the composition. Information can
be found in the section The Atmosphere Is Composed Mainly of Nitrogen, Oxygen, and Water Vapor

Environmental & Atmospheric Sciences

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Howler monkeys are examples of New World monkeys. Indicate whether the statement is true or false

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According the continental drift hypothesis, continents had once been joined together to form a single huge supercontinent called:

a. Rodinia b. Pannotia c. Pangaea d. Caledonian

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In summer, humid regions typically have smaller daily temperature ranges and lower maximum

temperatures than drier regions. Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Explain why metamorphic rocks, which require high temperature, pressure, or both to form, are commonly exposed at Earth's surface

What will be an ideal response?

Environmental & Atmospheric Sciences