Results Reporter Out of 20 questions, you answered 4 correctly with a final grade of 20% 4 correct (20%) 15 incorrect (75%) 1 unanswered (5%)
Your Results: The correct answer for each question is indicated by a
1 INCORRECT
2 INCORRECT
.
The most visually striking evidence of global warming is: A)
the increased precipitation along the Gulf coast states
B)
highly varying varying temperature temperature fluctuations felt during the winter month s
C)
rapid melting of glacial ice on on nearly every cont inent
D)
all of the above
The major reason(s) for the collapse collapse of of the great Mayan civilization civilization with a population population of millions in 800 AD to about about 30,000 by the times Spanish explorers arrived in Mexico were attributed to A) deforestation B) soil loss C) ot her land-use issues D)
3 INCORRECT
4 INCORR ECT ECT
all of the above
We know this (or these) for sure: A)
the flooding, thunderstorm s and hurrican es have increased over the past 100 years
B)
the amount of water vapor vapor retained in the atmosphere has increased increased
C)
outpourin g of greenhou se gases since the industrial revolution is causing the planet to retain more heat
D)
all of the above
Climate represents A)
represents th e long-term average weather and its statistical variation variation for a given region region
B)
weathe r averaged over a year
C)
it is a measure of variations in the amoun t of precipitation precipitation
D) n one of the above above
5 CORRECT
Climate forcing refers to A)
the forces that act on on the climate
B)
the forces that affect affect the weather
C)
processes that disrupt Earth's heat balance forcing the climate to change
D) n one of the above above
6 INCORRECT
Greenhouse effect refers to A)
ability of atmosphere to retain wat er vapor
B)
ability of certain atmospheric gases to trap heat and keep the planet relatively warm
C)
ability of cloud to scatter electromagnetic radiation
D) n one of the above above
7 UNANSWERED
8 INCORRECT
9 INCORRECT
Greenhouse effect is caused by natural affects and anthropogenic effects. If there is no natural greenhouse effect, the Earth's average surface temperature would be around __________°C A)
0
B)
32
C)
14
D)
-18
One of the orbital parameters in Milankovitch Milankovitch cycles is eccentricity. Changes in in eccentricity affects A)
the shape of the elliptical orbit
B)
the difference in solar solar heating between summer and winter
C)
the maximum and minimum distance distances distances to the Sun
D)
all of the above
The axial axial tilt tilt refers to how the inclinatio inclination n of Earth's Earth's axis varies varies between between ______ and _____ __ over a 41,000 year period A) 20.0°; 30.0° B) 22.1°; 24.5°
Multiple Choice Quiz C) 25.0°; 35.0° D) n one of the above
10 INCORRECT
11 INCORRECT
A positive climate feedback A)
example is thawin g of permanent ly frozen ground
B)
is a process that increases or amplifies the system 's response to a change in the heat balance
C)
inten sifies Earth's current w arming trend that m akes global warming a potentially dangerous problem
D)
all of the above
Carbon sequestration is A)
removal of carbon from the ocean and store it in the land
B)
removal of carbon from underground (such as hydrocarbon deposit) and storing in Earth's surface
C)
removal of carbon from the surface environ ment an d placing it in storage
D) n one of the above
12 CORRECT
A comparison of the trapping of heat by CO2 and CH4 is that A)
CH4 traps 21 times more heat in the atmosphere than does CO2
B)
CO2 traps 21 times more heat in the atmosphere than does CH4
C)
the same amoun t of heat is trapped by both CO2 and CH4
D) n one of the above
13 INCORRECT
A system of ocean currents that distributes both heat and freshwater around the planet is called A) Gulf stream B) thermohaline circulation C) hydrological cycles D) n one of the above
14 INCORRECT
15 INCORRECT
16 INCORRECT
El Niño A)
occurs when trade winds slacken
B)
occurs every 3-5 years and last for 9-12 months
C)
produce dry conditions in the weste rn Pacific, but comm only bring heavy rains and destructive flooding to parts of coastal North and South America
D)
all of the above
The temperature swing between the Medieval Warm Period and the Little Ice Age was only ______°F, which enough to drive the Vikings from Greenland and bring famine to civilized Europe A)
3
B)
5
C)
1.7
D)
2.3
Over the past 800,000 years, the CO2 concentration in the atmosphere (based on Dome core project in Antarctica) ranged between ______ and ______ ppm A) 180; 375 B) 100; 340 C) 350; 700 D) 180; 280
17 CORRECT
High precipitation areas are where humid air mass ___ ___ __ and arid zones are found where dry air ___ ___ A) rises; descends B) descends; rises C) rises; rises D) descends; descends
18 INCORRECT
The effect(s) of global warming is (are) A)
shifting of climatic zones from the equator toward Earth's polar regions
B)
expansion of circulating cells located on both sides of the equator by about 110 km
C) ch anges in Earth's biomes D)
19 CORRECT
all of the above
Loss of sea ice by melting in the Arctic Ocean A)
will result in sea-level rise
B)
may result in positive feedback that amplifies global warming
C)
will result in cooler temperature in the Arctic
D) n one of the above
20 INCORRECT
Scientists predict the pH of seawater to decrease to _____, representing a (n) _____% increase in acidity over the record 2007 conditions A) 7.96; 40 B) 7.99; 46 C) 7.89; 64 D) 7.8; 80
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