NATS-101 Intro. to Global Change Fake Quiz 4 FOR M/C SELECT BEST ANSWER AMONG
CHOICES
The quiz will cover
lecture material from March 20-March 31 (pages 165-169, 171-193, 225-263 of
Mackenzie)
___1.
We cannot calculate mean residence time of carbon for which one of the
following because it is not a pool/reservoir/box in the global carbon
cycle? (it is a
flux)
A. oceans B.
biosphere C. respiration D.
atmosphere
___2.
Which of the following is NOT a mechanism whereby humans input the greenhouse
gas, CO2, to the atmosphere?
A.
calcining (cement manufacture) B. fossil-fuel burning C. land-use changes D. nuclear power plants
___3. The largest reserves of oil on our planet are located in _________________.
A. China B. North America C. Middle East D.
South America E. Antarctica
___4.
Which of the following would be a renewable energy resource (in terms of
the perspective of human lifetimes)?
A.
coal B. oil C.
natural gas D. ethanol/alcohol E. uranium
___5.
Evidence that the massive extinction 250 million years ago may have been cause
by a meteorite/asteroid impact comes from the presence of ______ in sedimentary
rocks of that age.
A. iridium
anomalies C. “Bucky Balls” containing
gases of extraterrestrial isotopic composition
B. nickel anomalies D. cone-in-cone
structures in dinosaur bones
___6.
The seasonal fluctuations in atmospheric CO2 measurements are
generated from photosynthesis and respiration of Earth's biosphere. You would find the greatest amplitude of
fluctuation ______________________.
A.
at the equator C. in
Alaska E.
everywhere; it is uniform world-wide
B.
at the South Pole D. in
Australia
___7.
“Carrying capacity” (max. population that can be sustained) is NOT dependent on
which ONE of the following?
A.
raw materials C. energy availability E. food availability
B.
male:female ratio D. removal
of wastes
___8.
A surge (increase) of world population was not associated with which of the
following events?
A.
the tool-making revolution C.
the Industrial Revolution
B.
the agricultural revolution D.
the Black Plague
___9.
The current atmospheric CO2 concentration is ________________.
A.
almost 380 ppm C.
the lowest it has ever been
B.
the highest it has ever been D.
a little over 6 Gigatons
___10.
The highest atmospheric CO2 levels over the last 600 million years occur
or occurred ________.
A.
500 million years ago B. 20,000 years ago C. now D.
1965 during above-ground nuclear testing
___11.
The 38,000 Gt of carbon in the marine hydrosphere (ocean) is dominantly
found in which one of these forms/compounds?
A.
kerogen B. limestone
C. CH2O D. HCO3- E.
CH4
___12.
In the mid-1950s, _____ established the first continuous world monitoring of
atmospheric CO2 levels (at Mauna Loa).
A.
Suess B.
Malthus C.
Ehrlich D.
Keeling E.
Fuller
___13.
If the size of a reservoir is 50 Gt, and the flux out is 25 Gt per year, what
is its mean residence time (MRT)?
A.
1250 years B. 1250 per year C. 2 years D. 0.5 years E. 2 per year F. 0.5 per year
14.
Describe in complete but simple terms why the carbon cycle is “out of balance”
(as a result of human activities).
15. Explain an example of how the nitrogen cycle
might be linked to the carbon cycle.
16. If a country has a population of 100 million,
and its population is increasing at a rate of 3.5% per year, how long will it
take to double to 200 million people?
17.
Even if birth rate and death rate are equal, explain how a country’s population
might continue to increase so that “zero population growth” (ZPG) is not achieved.
18.
What are “land-use changes” in the context of this class?
19.
Tropical rain forests and savannas have similar amounts of dry organic matter.
How does its distribution differ?