________, a Danish naturalist, was the first to note that the angle between two adjacent faces of a crystal of quartz is always exactly the same.
A. McGeary
B. Steno
C. Einstein
D. Carlson
E. Plummer
Answer: B
Environmental & Atmospheric Sciences
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Heat a copper wire and its electrical resistance
A. decreases. B. increases. C. remains unchanged. D. none of the above
Environmental & Atmospheric Sciences
Drip irrigation systems are
A) less efficient than traditional flood or center-pivot systems. B) cheaper, compared to traditional flood or center-pivot systems. C) producing greater crop yields. D) used for most irrigation of crops in the United States.
Environmental & Atmospheric Sciences
In which decade was the theory of plate tectonics developed?
A) 1940s B) 1960s C) 1970s D) 1990s
Environmental & Atmospheric Sciences
What type of air mass would be responsible for hot, muggy summer weather in the eastern half of the United States?
a. mP b. mT c. cP d. cT e. cA
Environmental & Atmospheric Sciences