The liquid sodium that must be used to cool a breeder reactor
A. Is highly corrosive
B. Is explosive in contact with water
C. Burns intensely when exposed to oxygen
D. All of these are correct
E. None of these is correct
Answer: D
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Which statement least describes ecosystem modeling?
a. It is typically applied only to very small natural systems, such as a single pond or stream. b. It has developed since the 1960s. c. It can be applied to complex systems that cannot be adequately studied in the field or laboratory. d. It requires input of baseline data from field studies. e. It requires input of baseline data from laboratory studies.
A keystone species
A) has a disproportionately large impact on the stability of an ecosystem. B) typically reduces overall biodiversity of an ecosystem. C) is typically an herbivore. D) is an example of amensalism.
If the nuclear-power option were pursued vigorously with current commercial reactor technology and regulatory requirements, all U.S. electricity needs could be supplied by nuclear power in the next 5-7 years.
Answer the following statement true (T) or false (F)
Bajadas develop from coalescence of alluvial fans along fronts of mountain ranges in arid lands
Indicate whether the statement is true or false