What is stream capture and might it be about to happen to the stream nearest your home?
What will be an ideal response?
Answer: A stream captures or beheads another when the drainage from one captures a tributary flow from another basin as the first stream eats headward. In the local setting one might postulate such a circumstance if there seems to be a stream actively eating headward with another stream close by with a low drainage divide in between.
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Water precipitated over land completes its cycle as it
A) enters streams and lakes and makes its way to the oceans. B) percolates into the ground. C) evaporates from the surface to the atmosphere. D) all of the above
Brittle deformation would be favored over plastic deformation in which of the following conditions?
a.) warmer temperatures b.) shallow depths c.) high confining pressures d.) cooler temperatures
Magnitude is:
A) a measure of earthquake size that is related to the energy released during the earthquake. B) a directly measured physical quantity. C) a value that is calculated from measurements taken during an earthquake. D) determined using the amplitude of P and S waves.
Climate models predict that, as the world continues to warm, sea-surface temperatures in the tropics will rise. This may in turn ____
A) increase global circulation B) increase the amount of time between hurricane formations C) increase the strength of hurricanes D) decrease the strength of hurricanes