A) Positive feedback loop
B) Positive feedback loop
C) Negative feeback loop
<span>the answer would be C, schist because it has a layered/banded look that's made by exposure to heat and direct pressure.</span>
Answer:
B
Explanation:
i am sorry if this is wrong
Answer: blood transfusion
Explaination:a routine medical procedure in which donated blood is provided to you through a narrow tube placed within a vein in your arm
