Which of the following is the result of harmful ultraviolet radiation reaching the earth?
a. global warming
b. depletion of fossil fuels
c. deforestation
d. decortication
The Montreal Protocol of 1987 was an agreement to limit ________.
a. the usage of fossil fuels as energy sources
b. the usage of radioactive materials
c. the use of ozone-depleting chemicals
d. the emission of sulfur dioxide
Davis and Frank are environmental scientists discussing the factors that have led to the environmental problems faced by the world today. They are most likely to agree with the fact that ________.
a. chlorofluorocarbons in aerosol cans and refrigeration units contribute to ozone depletion
b. gases released into the earth's atmosphere by burning fossil fuels cause temperatures to dip
c. crude oil is the longest-lasting nonrenewable energy source
d. desertification leads to a decline in oxygen levels in water bodies
Farmers in the country of Carbodia continuously grow food crops throughout the year since the country exports food products. This has resulted in the reduction of the quantity of land suitable for agriculture.
Which of the following land degradation phenomena is described in the given scenario?
a. desertification
b. deforestation
c. eutrophication
d. decortication
Many scientists believe that the disposal of radioactive wastes is a major problem. Which of the following is a reason that the disposal of radioactive wastes could be a major problem?
a. Radioactive wastes are resistant to the process of eutrophication.
b. Radioactive wastes cannot be contained under any condition.
c. Radioactive wastes cannot be converted into a solid state.
d. Radioactive wastes remain active for a very long period of time.
How have bottle bills encouraged people to reduce the production of solid wastes?
a. They limit the number of bottled beverages a person can buy in a day.
b. They ban the production of plastic bottles.
c. They require that a deposit be paid for bottles when a beverage is bought.
d. They make it mandatory for beverage companies to start using cans instead of bottles.
The problem of acid rain can be alleviated by a reduction in the ________.
a. burning of fossil fuels
b. consumption of nuclear energy
c. heating of acids
d. emission of carbon dioxide
Which of the following is a true statement about the hydrologic cycle?
a. In a single pass through the hydrologic cycle, water is not always fully suitable for reuse.
b. There usually is more than one mechanism by which water is purified in the hydrologic cycle.
c. The hydrologic cycle describes the life cycle of marine wildlife.
d. The cleansing ability of the hydrologic cycle is not impacted by population and technology.
The early environmental groups at the beginning of the twentieth century ________.
a. focused exclusively on environmental degradation
b. focused on protecting wilderness areas for use by human beings
c. unanimously believed that the earth's carrying capacity was exceeded
d. made the general public in the U.S. aware of environmental concerns
Which of the following was a key factor that led the early twentieth century people to perceive environmental pollution as a threat?
a. the devastating effects that nuclear bombs had on the environment
b. the establishment of environmental interest groups
c. the discovery of fossil fuels
d. the depletion of the ozone layer
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