Which of the following would cause a negative forcing?

A) An increase in the burning of fossil fuels, leading to an increase in greenhouse gases in the atmosphere
B) A large volcanic eruption spewing ash high into the atmosphere, blocking sunlight around the world for years until the ash cloud slowly dissipates
C) Snow-covered ice sheets in Greenland melting and revealing bare rock
D) All of these scenarios would cause a negative forcing.


B

Environmental & Atmospheric Sciences

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According to the temperature sounding shown in this thermodynamic diagram, [INSERT FIGURE 3-31. NO CAPTION]

A) the tropopause occurs at a pressure of about 550 mb B) the tropopause occurs at a pressure of about 140 mb C) the stratopause occurs at a pressure of about 550 mb D) the stratopause occurs at a pressure of about 140 mb

Environmental & Atmospheric Sciences

The dry adiabatic rate is ____ greater than the moist adiabatic rate

a. never b. sometimes c. always d. most of the time e. half the time

Environmental & Atmospheric Sciences

The U.S. center of population has moved steadily to the

A) east. B) north. C) south. D) west. E) center.

Environmental & Atmospheric Sciences

Indian reservations are among the poorest communities in the U.S

a. True b. False Indicate whether the statement is true or false

Environmental & Atmospheric Sciences