Cause Of Natural Long-term Changes in Climate
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Cause Of Natural Long-term Changes in Climate
451. Which of the following greenhouse gases has the shortest residence
time in the atmosphere?
(A) nitrogen dioxide (NOx)
(B) CO2
(C) CFCs
(D) methane (CH4)
452. Which of the following is the most significant contributor to
worldwide greenhouse gas emissions?
(A) China
(B) United States
(C) Russia
(D) Saudi Arabia
453. Which of the following greenhouse gases is produced only by
anthropogenic means?
(A) CH4
(B) O3
(C) H2O
(D) CFCs
Cause Of Natural Long-term Changes in Climate
454. Which greenhouse gas is correctly paired with its source?
(A) NOx → photosynthesis
(B) methane → foam insulation
(C) carbon dioxide → burning fossil fuels
(D) CFCs → fire extinguishers
455. Which planet (other than earth) is known to have a “runaway
greenhouse effect” due to excess greenhouse gases in the atmosphere?
(A) Mercury
(B) Mars
(C) Venus
(D) Jupiter
Global Change ❮ 155
456. Which of the following is a possible outcome of increased global
temperatures due to the greenhouse effect and climate change?
(A) flooding
(B) droughts in agricultural areas
(C) increased precipitation and surface runoff
(D) all of the above
457. Sea-level rise is one of the consequences of global warming. Sea-level
rise is mostly caused by
(A) increased runoff into the oceans
(B) increased soil erosion into the oceans
(C) thermal expansion of water in the oceans due to rising
temperatures
(D) increased cloud cover over land, increasing rain
458. Paleoclimatologists gather proxy data from natural recorders of
climate variability. Which one of the following sources of climate
data is a proxy source that records the longest amount of time?
(A) tree rings
(B) ice cores
(C) pollen records
(D) volcanic eruptions
Cause Of Natural Long-term Changes in Climate
459. Which of the following is the cause of natural, long-term changes in
climate and are not associated with human activity?
(A) Milankovitch cycles
(B) the industrial revolution and burning of fossil fuels
(C) deforestation
(D) clear-cutting and increased agriculture
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