A wave begins to "feel the bottom" at a water depth equal to ________.
A. wave length
B. half a wave length
C. wave amplitude
D. the edge of the continental shelf
E. 2 to 3 times wave height
Answer: B
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The disappearance of the tropical rain forests is an important issue because it will ____.
A. increase cooperation between the affected countries B. accelerate atmospheric warming C. stabilize regional weather patterns D. result in more economic growth E. reduce infectious diseases spread by animals
Most marine organisms produce the mineral substance ________, which will later become limestone
A) SiO2 B) SO2 C) H2CO3 D) CaCO3
Each business cycle leaves a geographic imprint based on investment and disinvestment at the local level. These local landscapes are imprinted in which of the following ways?
A) Local labor forces are constructed. B) Local economies, landscapes and social structures are changed. C) These local imprints are generally short-lived. D) Each wave or cycle imprints the local landscape completely separately from previous or subsequent waves. E) Local labor forces are constructed and local economies, landscapes, and social structures are change.
The subsurface are in which all pore spaces are completely fill with water is known as
A) water table. B) gravitational zone. C) zone of saturation. D) base flow.