Author Question: Where and how do deltas form? What will be an ideal response? ... (Read 27 times)

fahad · **on:** Jul 29, 2018

Where and how do deltas form?

What will be an ideal response?

Question 2

Land subsidence is generally not reversible because

A) compacted clay layers cannot be expanded.
B) once pumping is stopped, layers continue to compact.
C) compacted sandy aquifers cannot be expanded.
D) none of the above

olivia_paige29 · **Reply #1 on:** Jul 29, 2018

Answer to Question 1

Answer: A delta forms where a stream enters a body of standing water and loses its ability to transport sediment. Large, coarse-grained sediments are the first to settle. Small, fine-grained sediments (able to be carried out to the farther reaches of the delta) are the last to settle. Thus sediment is deposited in order of decreasing weight, with heavy, coarse particles settling at and near the shoreline and light, fine particles settling farther offshore.

Answer to Question 2

Answer: A