When particles spread out it is called diffusion.
I believe it is D. More African elephants today naturally lack tusks compared to the elephant populations 100 years ago, because big game hunters sought elephants for ivory.
A cancer causing gene is caused by a mutation in a gene.
Answer: matter that settles to the bottom of a liquid dregs.
Sedimentary rocks are classified based on how they form and on the size of the sediments, if they are clastic.
Explanation:
