The longevity of nuclear power plants has averaged about

A) 20 to 25 years due to unexpectedly high levels of corrosion and embrittlement.
B) 40 to 50 years, longer than imagined, because neutrons tend to stabilize the building materials.
C) 10 years, only about 25% of their expected life, due to the need for new government-mandated safety designs.
D) 40 years, as expected, due to routine maintenance and the replacement with new longer-lasting materials.


A

Environmental & Atmospheric Sciences

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The difference between the wetland category of marsh and swamp is ________

A) that water is much deeper in a marsh B) water flows in a marsh and not in a swamp C) the dominance of herbaceous plants in swamps D) water flows in a swamp and not in a marsh E) the dominance of shrubs and trees in a swamp

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Elongated states may suffer from poor internal communication and difficulty defending borders. Which of the following is NOT an elongated state?

A) Malawi B) Gambia C) Botswana D) Chile E) Italy

Environmental & Atmospheric Sciences

Which of the following disasters has the highest probability of causing a "1,000-fatality event" each year?

A. a flood B. a tornado C. a hurricane D. a volcanic eruption E. an earthquake

Environmental & Atmospheric Sciences

The circulation of water from one part of the general Earth system to another is known as the:

a. condensation cycle. b. hydrologic cycle. c. environmental cycle. d. evaporation cycle.

Environmental & Atmospheric Sciences