I think the correct answer from the choices listed above is the first option. THe tool that would be <span>useful for testing cleavage and fracture in a mineral would be a hammer. It can test how a mineral acts when subjected to a very large amount of pressure or force. Hope this answers the question.</span>
Answer:
1. C
2.C
Explanation:
I've seen these questions before on a test from my school
Pollution from a near by city is your answer ;D
it involves negative feedback loop
Explanation:
the loop allows living organisms to maintain homeostasis