Where are you most likely to find primary succession?
a. on a new island formed by a volcano
b. on a prairie behind a new shopping mall
c. on a hill affected by a forest fire
d. on a large farm

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on

Ithink its because more have died recently than in the past.