Which of the following gases accounts for about 78 percent of the atmosphere's mass?

a. water vapor
b. nitrogen
c. ozone
d. carbon dioxide


b

Environmental & Atmospheric Sciences

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Continental rifting has not occurred on Earth since the Triassic. Indicate whether the statement is true or false

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What are the spatial resolutions of DEMs available from the USGS?

What will be an ideal response?

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Which of the following would be categorized as a cultural ecosystem service of forests?

A. Recreation and scenic areas for tourism B. Timber and landscape materials C. Mushroom and plant harvests D. Soil stabilization and air purification

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A person who is gaining weight but lacking in some vitamins exhibits

A) malnutrition. B) undernourishment. C) malnutrition and undernourishment. D) malnutrition and overnourishment.

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