What is one difference between primary and secondary succession?

Question

A.
Primary succession is slow and secondary succession is rapid.

B.
Secondary succession begins on soil and primary succession begins on virtually lifeless areas.

C.
Primary succession modifies the environment, and secondary succession does not.

D.
Secondary succession begins with lichens and primary succession begins with trees

Answer 1

B. Secondary succession begins on soil and primary succession begins on virtually lifeless areas.