Which of the following statements regarding stream terraces is true?
A)Terraces are composed of bedrock and form as a result of rapid subsidence.
B)Terraces are composed of bedrock and form as a result of rapid uplift.
C)Terraces are composed of floodplain deposits and form as a result of rapid subsidence.
D)Terraces are composed of floodplain deposits and form as a result of rapid uplift.

Question

Quizplus · Accepted Answer

Stream terraces are typically composed of floodplain deposits that become elevated above the current level of the river or stream as a result of rapid uplift of the land relative to the river or stream bed. This process leaves the former floodplain as a terrace above the current level of the stream.

Which of the Following Statements Regarding Stream Terraces Is True