EXAM
The destruction of the ozone layer primarily occurs in the
a. stratosphere
b. troposphere
c. thermosphere
d. mesosphere - ANSWERS-A.
Chlorinated hydrocarbon pesticides, like DDT, are synthetic versions of
a. non-biodegradable, persistent molecules
b. heavy metals
c. vitamins and minerals
d. ions and salts - ANSWERS-A.
Pesticide exposure has been shown to cause diseases of the
a. muscular and skeletal systems
b. ears and eyes
c. endocrine and immune systems
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,LSU ENVS 1126 FINAL LATEST
EXAM
d. pancreas and kidneys - ANSWERS-C.
If everyone on Earth eliminated meat from their diets, there would be
a. a great surplus of grains
b. increased pollution of waterways
c. increased demand for fossil fuels
d. increases in avian flu and Salmonella poisoning - ANSWERS-A.
Marker-assisted breeding allows
a. crop improvements without resorting to transgenic traits
b. plants that have been bioengineered to be easily identified in the field
c. desired bacterial genes to be inserted into crops
d. beneficial animal genes to be inserted into crops - ANSWERS-A.
A disproportionately high placement of toxic waste sites in regions of
the United States populated by minorities most likely indicates
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,LSU ENVS 1126 FINAL LATEST
EXAM
Select one:
a. a demographic transition.
b. environmental racism and justice.
c. sustainable development.
d. urban "smart growth." - ANSWERS-B.
With few exceptions, inorganic compounds do not have
a. nitrogen-oxygen bonds or carbon-oxygen bonds.
b. potassium-sodium bonds or hydrogen-chlorine bonds.
c. carbon-hydrogen bonds or carbon-carbon bonds.
d. hydrogen-nitrogen bonds or carbon-oxygen bonds. - ANSWERS-C.
Unlike with most species, human population ecology must also include
consideration of the
a. impact of infectious disease on mortality.
b. interactions of the global human population.
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, LSU ENVS 1126 FINAL LATEST
EXAM
c. ability of humans to construct safe places to live.
d. impact of severe weather on human health and safety. - ANSWERS-
B.
The fact that every organism in a biological community has a distinctly
separate niche is largely the result of
a. abiotic factors: soil chemistry, temperature, and moisture.
b. seasonal climate changes.
c. the fact that nearly all species live at the limits of their tolerance
boundaries.
d. competition among many species for limited resources. - ANSWERS-
C.
Which of the following best represents potential energy?
a. Sunlight shining on people on a beach
b. A breeze blowing across the top of a lake
c. A charged battery in a flashlight
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