The rock is heavy because the mass changes from 10.0kg to 100.0kg in 3.24 seconds
A I believe should be correct
Answer:
Kingdom, Phylum, and Class
Explanation:
https://www.portnet.org/cms/lib6/NY01001023/Centricity/Domain/252/classification%20packet%20key.pdf
Go there^
I hope that helps a bit :)