How do oxbow lakes form

here you go

Explanation:

when you get a meander the lake slowly erodes from the inside, because water will always want to take the faster route( which would be straight ) the lake will slowly cute off the meander while dumping the rivers load forming an oxbow lake

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

the correct answer is d