How are oxbows and loess similar?

Oxbows and loess both show similarity as they both show the constructive power of erosion. An oxbow lake starts as a curve in a river. Oxbows are formed where the river often empties into another water body. A loess is a sediment which is formed by the accumulation of the wind blown silt.

the answer to your question is:

c. complementary base-pairing

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves