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
You might also like to view...
Continental rifting has not occurred on Earth since the Triassic. Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
What are the spatial resolutions of DEMs available from the USGS?
What will be an ideal response?
Environmental & Atmospheric Sciences
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
Environmental & Atmospheric Sciences
A person who is gaining weight but lacking in some vitamins exhibits
A) malnutrition. B) undernourishment. C) malnutrition and undernourishment. D) malnutrition and overnourishment.
Environmental & Atmospheric Sciences