Question

Question 18 2 pts All of the following are evidence of a recent mass wasting event EXCEPT nts O cobble-filled streams. O bowed trees. O head scarps. O piles of loose debris rse

Answer 1

Answer: Answer is option 1.

- Cobble-filled streams indicate that the river has eroded the area it flows through and has high velocity enough to make the weathered rock travel over long distance and cause them to round and and smoothen as they rub against each other.

- Bowed trees can result due to rock creep wherein weathered/weak rocks can move away from the parent rock- damaging the vegetation in the process. Since the process is gradual, the trees appear bowed instead of appearing uprooted.

- Head scarps are the vertical area of freshly exposed area exposed due to a landslide.

- Piles of loose debris are caused by mass wasting wherein the area could not hold its form due to lack of vegetation, faulting +excess water, regional faulting etc.