Answer:
well physical weathering is the process of a element or acts of water rock or other items that take its toll on items
Explanation:
so i would,WITH CONFIDENCE C.
you can learn who's blood it is, you can also see the blood patterns and how the crime maybe happened.
<span>the number of neutrons they have</span>
Answer: B or C
Explanation: The question does not include the variable or steps Brian is using so either one could be correct. It has to be the one that he is controlling though. This is because a control group is used to rule out any alternate explanations. Therefore the answer should be the one that he is trying to test out.
1.T
2.F
3.T
I think I think Im not complety sure sorry