Answer:
1 - 3 - 4 - 2
Explanation:
1 . A stream migrates laterally across its floodplain developing meanders. This stream terminates at a lake, which is its base level.
2. The base level of the stream is lowered by crustal uplift and the river begins to incise downward.
3.Incised meanders form.
4.A rincon forms by the cutoff of an incised meander, which shortens the river.
From its source high in the Rocky Mountains, the Colorado River channels water south nearly 1,500 miles, over falls, through deserts and canyons, to the lush wetlands of a vast delta in Mexico and into the Gulf of California. That is, it did so for six million years.
I believe the correct answer is C. the continents have moved in the past and are still moving
