AnswersFL-2001340-Environmental Science Sem 1 CRCumulative Exam

Cumulative Exam — Cumulative exam Answers

0 verified answers3 views
21
Free Preview

Which of the following does not occupy the bottom of an energy pyramid?

A
phytoplankton
B
trees
C
grass
D
zooplankton
22
Free Preview

After the energy crisis of the 1970’s and the OPEC oil embargo, the US _______.

A
increased its dependency on foreign oil
B
began to wean itself off of foreign oil and the economic vulnerability it brings
C
changed over to all renewable energy sources
D
began building new nuclear power plants to replace fossil fuel use
23

Agricultural practices can lead to water pollution.

A
T
B
F
24

Why has the spread of the herbicide-resistant hydrilla through Florida’s waterways resulted in them no longer being navigable by most boats?

A
Thy hydrilla has induced a drought that drained the waterways.
B
The weed clogs propellers that boats use for propulsion.
C
The sticky leaves of the weed hold boats in place.
D
All of the above
25

Soil formation is dependent on a number of factors.

A
T
B
F
26

The temperature stability of earth’s atmosphere is mostly due to _______.

A
the seasonal changes in day length
B
the rotation of earth about its axis
C
plant respiration
D
water in the oceans acting as a thermoregulator
27

Nuclear power is an example of an alternative energy source that has greater negative environmental impacts than the burning of fossil fuels.

A
T
B
F
28

National parks reduce the human impact on land by _______.

A
permitting limited human development.
B
cleaning up litter
C
preventing human development
D
preventing companies from polluting on public lands
29

Arboreal animals are animals that _______.

A
rely on trees for food
B
live in trees
C
are harmful to trees
D
none of the above
30

Trees are an important source of food for humans and other organisms.

A
T
B
F
31

Hedgerows have created a new ecosystem within Britain’s _______.

A
farms
B
cities
C
forests
D
industrial areas
32

Which of the following is(are) true concerning the 2004 tsunami in Indonesia?

A
It had minimal human casualties.
B
The tsunami waves were as high as 500 feet.
C
It was triggered by magnitude 9.1 earthquake.
D
All of the above
33

Which of the following is not a reason that cane toads became an invasive species in Australia?

A
They are poisonous to most animals.
B
They are voracious predators.
C
They have almost no natural predators.
D
They are not well adapted to the Australian climate.

Did you find these answers helpful?