What is the relationship between average stream velocity, stream roughness and stream gradient?
A. As average stream velocity increases, roughness and gradient decrease.
B. As average stream velocity increases, roughness and gradient increase.
C. As average stream velocity increases, roughness decreases and gradient increases.
D. As average stream velocity increases, roughness increases and gradient decreases.
A. As average stream velocity increases, roughness and gradient decrease.
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Which of these is a scientific hypothesis?
A. Your truest friends and you have the same astrological sign. B. The full Moon is a poor time to make decisions. C. The dumpster in your back alley is filled with garbage. D. none of the above
A stationary front does not move because winds on both sides of the front ____
A) are calm B) blow parallel to the front and in opposite directions C) blow away from the front and are of equal strength D) blow against each other and are of equal strength
Nuclear power plants are especially expensive because they
A) require the highest levels of security. B) usually cost as much to decommission as they cost to build. C) have so many parts that must be coated in gold. D) are constructed of many thick layers of concrete.
Both the annual and the daily ranges of temperature are larger in continental locations than in marine locations
Indicate whether the statement is true or false