Over time, a river gradually shifts its position back and forth across a valley bottom. as it shifts, it drops sediment to gradually build up a flat floodplain.

as the landform's name implies, another process plays a role in floodplain formation. which of the following describes this process?

Hello. This question is incomplete. The full question is:

" Over time, a river gradually shifts its position back and forth across a valley bottom. As it shifts, it drops sediment to gradually build up a flat floodplain.  As the landform's name implies, another process plays a role in floodplain formation. Which of the following describes this process?Glaciers move through a river valley every winter and flatten out the landforms.

A. Glaciers move through a river valley every winter and flatten out the landforms.   B. A river may flood its valley and form a permanent inland sea.   C. Acid rain weathers large rocks until they form a broad, flat plain.  D. A river floods over its channel banks and deposits sediment on the wide valley bottom. "

D. a river floods over its channel banks and deposits sediment on the wide valley bottom.

Explanation:

Flood planice is the term used to describe an area that is on the edge of a body of water (river, lake, etc.) that is flooded whenever this body of water goes through a flooding process. The floodplain occurs naturally in nature and presents a soil rich in nutrients and promising for agricultural processes due to the high fertility of the soil.

In summary, we can say that the areas that present floodplain exist because a river floods the banks of the channel and deposits sediments in the vast valley floor.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).