Which of the following is a way that humans speed up the process of erosion?
a.
urban development
b.
hiking
c.
deforestation
d.
all of the above

Human activity has large impacts on erosion. Urban development removes the plants and natural landscapes that serve to preserve land with their root systems and wind breaking structures. Deforestation is similar to urban development in that it removes plants and landscapes that naturally protect against the natural effects of erosion. Hiking, even, can cause land to change shape depending on the continued use of certain trails, and the flattening of different areas for camping, cooking, and just walking.

Pro insulin undergoes extensive posttranslational modification along the production pathway .