Bio B Quiz 2 Form B

Biology B Standards BI.6.b Populations – 20 Questions » Form B

1. Companies in the United States continue to
manufacture and export chlorinated hydrocarbons,
even though they are banned here.
A. True
B. False
2. Human population growth is most rapid in
A. Europe.
B. the United States.
C. Japan.
D. developing countries.
3. The world´s climate is warming as large amounts of
carbon dioxide are released into the atmosphere.
A. True
B. False
4. Chlorofluorocarbons (CFCs) are a problem because
A. corrode aerosol cans and release iron oxide into
the atmosphere.
B. are released by air conditioners into the ground
C. attack ozone molecules in the upper atmosphere.
D. were once thought to be a hazard, but this now
causes unnecessary expense for industry.
5. The decrease in species diversity of some lakes in the
northeastern United States during the 20th century
may best be explained by
A. global warming.
B. evolutionary trends.
C. the destruction of the ozone layer.
D. acid rain.
6. The greenhouse effect may increase on Earth
A. decomposers essential to recycling matter are
being destroyed.
B. too much oxygen is now given off by plants.
C. increasing carbon dioxide will trap more heat.
D. Earth tilts toward the sun in the summer.
7. Fuel efficiency was measured in three types of
vehicles, a bus, a truck, and a car. The bus got 8 miles
per gallon, the truck got 12 miles per gallon, the car
got 22 miles per gallon, and the electric car got 55
miles per gallon. Which vehicle would create the most
greenhouse gases if driven the same distance as the
A. bus
B. truck
C. car
D. electric car
8. One species of shark gives birth to five live young
every two years. Which of these human activities will
cause the greastest change in the shark population?
A. overfishing
B. increased water pollution
C. decreased emissions from cars
D. reducing sewage spills
9. In a new habitat, pioneer species are eventually
replaced by other plant immigrants.
A. True
B. False
10. Succession is
A. an organism´s ability to survive in its environment.
B. the number of species living in an ecosystem.
C. the regular progression of species replacement in
an environment.
D. the transfer of energy through a food chain.
11. Topsoil
A. is a renewable resource.
B. is formed from the remains of plants and animals.
C. forms at the rate of 1 cm each growing season.
D. forms by the action of water and wind.
12. The destruction of the ozone layer may be responsible
for an increase in
A. cataracts.
B. melanoma.
C. cancer of the retina.
D. All of the above
13. Ozone in the atmosphere
A. leads to formation of acid precipitation.
B. combines readily with water vapor.
C. absorbs harmful radiation from the sun.
D. All of the above
14. Renewable sources of energy
A. replenish themselves naturally.
B. must be created in laboratories.
C. are manufactured from fossil fuels.
D. were never utilized until the 20th century.
15. About one-half of Earth´s tropical rain forests have
been destroyed.
A. True
B. False
16. A population of organisms grows
A. when there are no natural restrictions except the
availability of food.
B. when the birth rate exceeds the death rate.
C. only in the absence of predators or natural
D. All of the above
17. Destruction of the tropical rain forests
A. threatens the existence of thousands of species.
B. provides for more pasture and farmlands.
C. is done partly because of the need for lumber.
D. All of the above
18. The exploding human population is the single greatest
threat to the world´s future.
A. True
B. False
19. The presence of DDT in birds causes thin, fragile
eggshells, most of which break during incubation.
A. True
B. False
20. In the upper atmosphere, sulfur released from the
burning of sulfur-rich coal combines with water vapor
to form
A. sulfur dioxide.
B. sulfuric acid.
C. ozone.
D. All of the above

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