EVR 1001 chapter 12- Questions and Answers
1. a region of land that is periodically flooded Which of the following best describes a
when a river overflows floodplain?
2. Watershed What is the name of an area of land
that is drained by a river and all of its
tributaries?
3. littoral zone The region of a lake where plants are
able to attach to the bottom and still
reach above the surface is known as the
.
4. percent of recovery compared to natural wet- What does the y-axis show?
lands
5. plant biomass What does the red graph line repre-
sent?
6. about 80% of the biomass of a natural wetland After 20 years, how much plant bio-
mass does a restored wetland contain?
7. about 40% of natural wetland capacity After 55 years, how does the capacity of
a restored wetland to absorb nutrients
compare to that of a natural wetland?
8. supported Most of the productivity of a wetland
can be restored within 50 years, but it
takes much longer to restore soil fertil-
ity.
9. providing food for fish and wildlife Natural wetlands provide many ecosys-
tem services. When a wetland is re-
1/9
, EVR 1001 chapter 12- Questions and Answers
stored, which of the following ecosys-
tem services returns most rapidly?
10. cannot be determined from the graph Is the following statement supported
or not supported by the data shown in
the graph?
The restoration of a wetland takes
about 100 years.
11. a decrease in the pH (ocean acidification) Oceans have absorbed approximately
one-third of the excess carbon dioxide
that humans have added to Earth's at-
mosphere so far. This has slowed the
progression of global climate change,
but it has led to .
12. continental shelf The area that underlies the shallow wa-
ter bordering continents is called the
.
13. symbiotic algae that provide energy to many Zooxanthellae are .
species of corals
14. El Niño The exceptionally strong warming of
the eastern Pacific is referred to as
.
15. brings benthic nutrients to the ocean surface Upwelling .
promoting high primary productivity
16. adding huge amounts of less-dense fresh wa- The rapid melting of Greenland's ice
ter to the surface of the system cap could disrupt the NADW formation
by .
2/9
1. a region of land that is periodically flooded Which of the following best describes a
when a river overflows floodplain?
2. Watershed What is the name of an area of land
that is drained by a river and all of its
tributaries?
3. littoral zone The region of a lake where plants are
able to attach to the bottom and still
reach above the surface is known as the
.
4. percent of recovery compared to natural wet- What does the y-axis show?
lands
5. plant biomass What does the red graph line repre-
sent?
6. about 80% of the biomass of a natural wetland After 20 years, how much plant bio-
mass does a restored wetland contain?
7. about 40% of natural wetland capacity After 55 years, how does the capacity of
a restored wetland to absorb nutrients
compare to that of a natural wetland?
8. supported Most of the productivity of a wetland
can be restored within 50 years, but it
takes much longer to restore soil fertil-
ity.
9. providing food for fish and wildlife Natural wetlands provide many ecosys-
tem services. When a wetland is re-
1/9
, EVR 1001 chapter 12- Questions and Answers
stored, which of the following ecosys-
tem services returns most rapidly?
10. cannot be determined from the graph Is the following statement supported
or not supported by the data shown in
the graph?
The restoration of a wetland takes
about 100 years.
11. a decrease in the pH (ocean acidification) Oceans have absorbed approximately
one-third of the excess carbon dioxide
that humans have added to Earth's at-
mosphere so far. This has slowed the
progression of global climate change,
but it has led to .
12. continental shelf The area that underlies the shallow wa-
ter bordering continents is called the
.
13. symbiotic algae that provide energy to many Zooxanthellae are .
species of corals
14. El Niño The exceptionally strong warming of
the eastern Pacific is referred to as
.
15. brings benthic nutrients to the ocean surface Upwelling .
promoting high primary productivity
16. adding huge amounts of less-dense fresh wa- The rapid melting of Greenland's ice
ter to the surface of the system cap could disrupt the NADW formation
by .
2/9
