A, I think because you need to be more specific
Answer:
C ; Brat
Explanation:
Negative coccotation is like an insult. Or something that isn't good. A brat is seen and used as an insult, therefore being a negative connotation!
Answer:
Coarse Adjustment Knob
Explanation:Coarse Adjustment Knob- The coarse adjustment knob located on the arm of the microscope moves the stage up and down to bring the specimen into focus. The gearing mechanism of the adjustment produces a large vertical movement of the stage with only a partial revolution of the knob.
