Which of the following is most likely to be powered by photovoltaics?
A) A lighthouse B) A calculator C) A lawn mower D) An automobile
B
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What property of an electron makes it possible to use electron microscopes?
A) They can be focused using smaller lenses. B) They have shorter wavelengths than visible light. C) They are electrically charged. D) They can be generated with electricity. E) none of the above
Tsunamis are waves that travel as fast a as a passenger jet aircraft. Indicate whether the statement is true or false
Using Figure 13.4 in your textbook, if comparing equal-weight blocks of each substance, which one would be smallest?
A) mantle B) continental crust (mostly granite) C) oceanic crust (mostly basalt) D) ocean (mostly water)
Floodplain formation occurs while a stream is downcutting rapidly
Indicate whether the statement is true or false