Water Erosion Question Preview (ID: 56775)
Use Your Knowledge Of Earth Science To Answer All Questions In The Data Set. You Will Need Your Earth Science Reference Tables And A Calculator To Answer Some Of The Questions. Good Luck.
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What change will a pebble usually undergo when it is transported a great distance by streams?
a) It will become jagged and its mass will decrease.
b) It will become jagged and its volume will increase.
c) It will become rounded and its mass will increase.
d) It will become rounded and its volume will decrease.
Which statement best describes what happens when the particles are placed in the streams?
a) Stream I will move all particles that are added at point A.
b) Stream II will move all particles that are added at point A.
c) Stream I cannot move sand.
d) Stream II cannot move sand.
Which statement is the most accurate description of conditions in both streams?
a) The greatest deposition occurs at point B.
b) Particles are carried in suspension and by bouncing along the bottom.
c) The particles will have a greater velocity than the water in the stream.
d) The velocity of the stream is the same at point B as at point C.
If a sudden rainstorm occurs at both streams above point A, the erosion rate will
a) increase for stream I, but not for stream II
b) increase for stream II, but not for stream I
c) increase for both streams
d) not change for either stream
Which quartz sample has probably undergone abrasion in a stream for the longest period of time?
a) A
b) B
c) C
d) D
A sediment particle transported by a stream over a long period of time will most likely show
a) a decrease in mass and number of angular edges
b) a decrease in density and size
c) an increase in weight and hardness
d) an increase in volume and number of cleavage planes
Which change would most likely increase the velocity of the river?
a) a decrease in the slope of the river
b) a decrease in the temperature of the river
c) an increase in the river's discharge
d) an increase in the width of the river
During transport by this river, a sediment particle will most likely become
a) more rounded
b) more dense
c) heavier
d) larger
At which location is erosion greatest?
a) W
b) X
c) Y
d) Z
The stream's velocity from June 19 to July 20 at this section of the stream most likely
a) decreased, only
b) decreased, then increased
c) increased, only
d) remained constant
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