Dimming the Sun video
Answers
Dr David Travis found that aircraft contrails
a. increased nighttime temperatures and decreased daytime temperatures
b. increased nighttime temperatures and increased daytime temperatures
c. decreased nighttime temperatures and decreased daytime temperatures
d. decreased nighttime temperatures and increased
daytime temperatures
Pan evaporation rates increase as (circle best choice for each)
sunlight (increases or decreases)
dew point (increases or decreases)
air temperature (increases or decreases)
wind speed (increases or decreases)
Jerry Stanhill noticed that solar energy reaching the group in Israel
a. Dropped significantly over the past 40 years
b. Increased significantly over the past 40 years
c. Dropped significantly over the past 100 years
d. Increased significantly over the past 100 years
Over the past 40 years pan evaporation rates have ________________.
a. increased
b. decreased
c. remained about the same
Pan evaporation rates have been used by scientists to infer the amount of
sunlight
a. reflected back into space
b. absorbed by clouds
c. reaching the ground
d. given off by the sun.
Dr. Ramanathan helped lead the INDOEX experiment in the Maldives Island to
better understand.
a. how clouds reflect sunlight
b. the difference in clouds in polluted environments to
cloud in pristine environments
c. how clouds influence the greenhouse effect
d. the difference in cloud abunances
Dr. Ramanathan found that tropospheric aerosols make cloud drops
a. smaller and hence more reflective
b. smaller and hence less reflective
c. larger and hence more reflective
d. larger and hence less reflective
Burning fossil fuels for energy
a. adds greenhouse gases but not particulate matter (aerosols) to the
atmosphere.
b. adds greenhouse gases and particulate matter
(aerosols) to the atmosphere.
c. removes greenhouse gases and particulate matter (aerosols) from
the atmosphere.
d. removes greenhouse gases but not particulate matter (aerosols) from the
atmosphere.
Most scientists believe that increasing levels of greenhouse gases causes
Earth's surface temperature
to _____________ while increasing levels of atmospheric aerosols causes Earth's
surface temperature to
_____________.
a. warm, warm
b. warm , cool
c. cool, warm
d. cool, cool
One possible cause of the severe drought over the Sahel during the 1980s and
early 1990s was.
a. increased sunlight over the Guinea Basin (just South of Ivory Coast and
Ghana) amplifying the seasonal monsoon pattern.
b. decreased sunlight over the Guinea Basin (just South of Ivory Coast and
Ghana) amplifying the seasonal monsoon pattern.
c. decreased sunlight over the Guinea Basin (just South
of Ivory Coast and Ghana) suppressing the seasonal monsoon pattern.
d. increased sunlight over the Guinea Basin (just South of Ivory
Coast and Ghana) suppressing the seasonal monsoon pattern.