2. If you measured the age of a fossil using "C dating and determined its age to be about 17000 years old, how much of the rock should be made of "14n?

the answer to your question is sperm

radon is correct hope this

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