Environmental Engineering Reference
In-Depth Information
D.
O
2
is the largest component of the atmosphere.
E.
O
2
is a very reactive molecule.
7.
Which of the following is NOT true of phosphorus and the phosphorus cycle?
A.
Living organisms do not need phosphorus.
B.
Phosphorus tends to be more localized compared with other biogeochemical cycles that can move
more freely in the global system.
C.
Phosphorus is generally found in rocks, sediments, and soil.
D.
Phosphorus does not exist in the atmosphere as a gas.
E.
Phosphorus is mined from phosphorus-rich rock, which is processed and then added to commercial
inorganic fertilizers.
8.
Which of the following examples would NOT be considered an adaptive trait?
A.
Thicker fur coats on wolves in northern Canada
B.
Echolocation in bats
C.
Longer claws on rodents that dig in the soil for food
D.
The ability for hummingbirds to maneuver in the air quickly
E.
High water requirements of plants in the desert
9.
Due to a major flood, a dam broke, altering the course of a river. A population of ground squirrels be-
came separated due to the river's change of course. Over time, the divided population developed new
adaptations and eventually created separate species. This is an example of
A.
Sympatric speciation
B.
Stabilizing selection
C.
Allopatric speciation
D.
Directional selection
E.
Disruptive selection
10.
All of the following are ways in which humans are contributing to extirpation and extinction of organ-
isms EXCEPT through:
A.
Introducing invasive species
B.
Polluting land, water, and soil
C.
Creating wildlife refuges
D.
Altering the climate
E.
Overharvesting resources
11.
If a species is endemic to an area, it is:
A.
Only found in one location on the planet
B.
A generalist species
C.
Less prone to extinction
D.
Considered an invasive species
E.
Almost always protected under the Endangered Species Act
Questions 12-14 refer to the following answer choices.
A.
Predation
