Which one of the following is true of hydrogen fuel cell technology?

A) Many homes were built in desert regions using the technology to collect and heat water.
B) It has been used widely in NASA's spaceflight programs.
C) The visionaries of the fossil fuel companies saw the need to develop this technology.
D) The U.S. government wanted it for use in military operations.
E) It was originally slated for use in cars by Ford.


B

Environmental & Atmospheric Sciences

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Why might the abundance of marine diatoms be related to increased volcanism?

A)Volcanic activity resulted in decreased sunlight, which affected the growth of all marine phytoplankton except diatoms. B)Volcanic activity may have resulted in the increase in silica in seawater. C)Increased volcanic activity warmed sea water, creating a favorable habitat for diatoms. D)Increased volcanism caused cooling of sea water, which created optimal conditions for diatom growth. E)Increased volcanism created new ecological habitats for diatoms.

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Which country has experienced persistent industrial decline?

A) Germany B) Japan C) Great Britain D) Belgium E) Netherlands

Environmental & Atmospheric Sciences

The temperature at which condensation takes place is the ____________________ temperature

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences