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Post-Test
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1
The human population has grown ______________ through the years.
A)slowly
B)in a linear manner
C)exponentially
D)none of the above
2
Growth rate of a population is determined by:
A)the increase in the number of people per unit of time.
B)The number of people being born minus the number of people dying.
C)the number of children living per each two adults.
D)the number of people times the number of children each one has per year.
3
Beaches and coastal areas are attractive places to live; however, bringing the population close to the water's edge poses several problems. Which of the following are caused by people living near the coastline?
A)beach erosion
B)loss of coastal wetlands and salt water marshes
C)loss of habitat for marine organisms
D)All of the above are problems caused by people living near the coastline.
4
Why is biodiversity valuable and desirable to humans?
A)for medicinal purposes
B)for agricultural diversity
C)for consumptive use
D)All of these are correct.
5
Which of the following would be a logical step toward becoming a sustainable society?
A)focus more research on developing cleaner uses of fossil fuels
B)increase mining of metals as potential sources of fuel
C)maximize the use of renewable energy sources
D)utilize natural ecosystems for single family homes
6
The ____________ indicates the maximum population that the environment can support for an indefinite period.
A)biotic potential
B)growth curve
C)carrying capacity
D)mean population
7
More-developed countries such as the United States, Canada and Europe are characterized by:
A)high population growth rate and poor standard of living.
B)modest population growth rate and good standard of living.
C)high population growth rate and good standard of living.
D)very low population growth rate and poor standard of living.
8
The rapid increase in the human population between 1850 and 1950 was due to which of the following factors?
A)decreased death rate
B)increased birthrate
C)increased biotic potential
D)newly conquered territories
9
In studying human populations, age-structure diagrams
A)can be used to predict future population growth.
B)show the distribution of people who are dependent, reproductive, and postreproductive.
C)show the relative number of young women compared to older women.
D)Answers 1 and 2 are correct.
10
Identify the nonrenewable resource:
A)coal
B)oil
C)iron
D)all of the above
11
Which of the following processes lead to desertification of land in semi-arid areas?
A)excessive irrigation
B)intense fertilization
C)overgrazing
D)property development
12
A/an ___________such as those in Florida may result from depleting ground water.
A)irrigation
B)aquifer
C)sinkhole
D)natural dam
13
It is estimated that as much as 70% of the freshwater worldwide is used for:
A)drinking water
B)industry
C)irrigating crops
D)bathing
14
Saltwater intrusion is the:
A)mixing of saltwater and freshwater in aquifers.
B)mixing of surface saltwater and freshwater in rivers joining the oceans.
C)process of purifying saltwater for drinking and agriculture.
D)runoff of saltwater from irrigation systems.
15
Which of the following methods have allowed us to meet the increasing demand for food?
A)development of food substitutes
B)increased fishing of the seas
C)improved trapping and hunting
D)modernization of farming
16
Most of the world's energy comes from which of the following sources?
A)hydroelectric power
B)nuclear power
C)oil, natural gas and coal
D)solar radiation
17
Heavy metals are dangerous to humans because they
A)are found in large quantities in the oceans.
B)discolor teeth and weaken bones.
C)enter waste water through urine.
D)inhibit enzyme activity.
18
Unfortunately_________ percent of coral reefs have already been destroyed?
A)10%
B)25%
C)60%
D)100%
19
Identify the alien species.
A)kudzu
B)zebra mussel
C)dandelion
D)all of the above
20
The Gross National Product is an indicator of economic well-being. A similar ecological indicator would include which of the following factors?
A)aesthetic value
B)cultural value
C)value to LCDs
D)only a and b





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