The Atmosphere and Climate Modeling - Introduction to Carbon Capture and Sequestration - page 95

Section 6
Review

2.1. Reading self-test

1. Without an atmosphere the average temperature of the earth
would be
a. 42.8F
b. 57.2F
c.

2.2F
d. 32F

−

2. The percentage of the radiation by the sun that is refl ected by
the clouds is
a. 9%
b. 23%
c. 31%
d. 41%

3. What is the lifetime of CO 2 in the atmosphere?
a. 10 hours
b. 1 year
c. 10 years
d. 500 years

4. Which sentence about radiative forcing is NOT correct?
a. Soot on snow increases the global temperature
b. Coal-fi red power plants emit particulates in the atmosphere
that enhance global warming
c. Solar irradiance adds 0.1 W/m 2 to global warming
d. Ozone can have a positive or negative effect on the radiative
forcing