Independent variable: is the UV light exposure
Control group: people not exposed (sample b)
Dependent variable: skin cancer
Experimental group: (sample A)
I believe it is the lungs.
<span>Light microscopy is great for small labs and general use, as the microscope is lightweight, usually portable, and relatively inexpensive.</span>
Answer:
Explanation:
Answer: C, Friction
Which force acts when one object moves against another object?
Friction