Answer:
I think it increases.
Explanation:
Because it gets colder when you travel higher up.
"Alluvial fan" is the name given to <span>a large deposit of sediment that occurs at the mouth of a river due to a sudden change in elevation. These alluvial fans are caused mainly due to the deposition of sediments by the rivers and streams. I hope that the answer has come to your desired help.</span>
When a moving force (usually water) wears down an object or material, this is called erosion