Tsunamis are shallow-water waves because their wavelengths are so long that they will never be in
water deeper than its wavelength. Indicate whether the statement is true or false.
ANS: T
Tsunamis can have wavelengths of 100 kilometers. The deepest ocean trenches only reach 11
kilometers in depth. Information can be found in the section Contemporary Oceanography Makes Use
of Modern Technology
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A drought defined by the degree of dryness as compared to a regional average and the duration of dryness is a(n)
A) meteorological drought. B) agricultural drought. C) hydrological drought D) socioeconomic drought.
Fold-and-thrust belts are the result of ________ stress whereas fault block mountains are the result of ________ stress
A) compressional; tensional B) shear; compressional C) tensional; shear D) shear; tensional
Why are "growth" and "development" NOT interchangeable terms?
A) "Growth" normally refers to the standard of living, while "development" normally refers to the economic system in a country. B) "Growth" normally refers to the economic system, while "development" normally refers to the political system in a country. C) "Growth" normally refers to improvements, while "development" usually refers to an increase in the size of a system. D) "Growth" normally refers to the increase in agricultural output, while "development" usually refers to the improvement in the educational system of a country. E) "Growth" normally refers to increase in the size of the system, while "development" usually refers to improvements.
One day you are looking through some 150 year old maps in a local historical society near an urban area as part of a study. What would you likely notice about the amount of wetlands on those maps compared to today?
A. Wetlands have decreased in area. B. Wetlands have increased in area. C. Wetlands have remained about the same.