Which of the following answer/s listed below pertain to the commercial benefits of microbes? a, insulin

b. aspirin

c. antibiotics

d. pain reliever

most community's take hundreds of years to become stable

all these collisions do one thing, and that thing is explained in the last option. when dusst, rocks and ice collide, they harden and form giant layers of rocks or hard ice.

d)   to harden materials to form different parts of earth’s layers

hope it ,

bioteacher101