<span>Mechanical </span><span>weathering occurs more rapidly in climates that experience frequent freezes and thaws
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One reason why People in South America moved from rural areas to the city is to get more employment opportunities
I think you forgot to attach the picture along with the question. I am answering the question based on my research."Gravity" is the one process of soil erosion among the following choices given in the question that is being <span>prevented by the structure shown below. The correct option among all the options that are given in the question is the second option.</span>
Believe it to be Chines, Persian, and Roman but I would wait for another answer to be sure. I will check my notes also.
Answer:
I think its gravity but not sure
