Much of the ultraviolet light from the sun is absorbed by ________, as it passes through the atmosphere.
A. Water vapor
B. Carbon dioxide
C. Green house gases
D. Ozone
E. Nitrogen gas
Answer: D
You might also like to view...
Since the Clean Water Act of 1972, the quantities of nitrate and phosphate entering surface waters have
A. essentially remained the same. B. have decreased for point sources but not nonpoint sources. C. decreased significantly for both point and nonpoint sources. D. have decreased for nonpoint sources but not point sources.
Unlike other structures, where do most joints form and why
What will be an ideal response?
Faunas became more diverse during the breakup of Pangaea because ____
a. angiosperms dominated b. gymnosperms dominated c. climate was highly variable d. of increased competition for shoreline and shelf habitats e. intercontinental migration was more difficult
In an area where the temperature increase with depth averages 20°C per kilometer, the temperature at a depth of 5 kilometers would be ________
A) 50°C B) 20°C C) 200°C D) 100°C