Which of the following will favor stream terrace formation?
A) a large increase in sediment load
B) tectonic uplift of the headwaters
C) a rise in sea level
D) a decrease in rainfall

Question

Quizplus · Accepted Answer

Stream terrace formation is favored by tectonic uplift of the headwaters, which causes the stream to incise downward, leaving behind former floodplains as terraces. A large increase in sediment load (A) may lead to aggradation rather than incision, while a rise in sea level (C) may cause flooding but not necessarily terrace formation. A decrease in rainfall (D) may result in lower discharge and erosion rates, and may even cause sediment to be deposited rather than eroded.

Which of the Following Will Favor Stream Terrace Formation