What part of the bacterial cell helps it stick to surfaces
C) In the absence of an unbalanced force, an object at rest will stay at rest and an object in motion will stay in motion.
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The question is poor. Light doesn't refract on its way THROUGH anything. It refracts at the boundary BETWEEN two different media. The effect is greatest where the ratio of the speeds of light in the two media is greatest. On your list, that would be at the boundary between air or space and glass.
A barometer is used to measure air pressure!
The correct answer should be <span>A. If you see a wear bar across the width of the tread, it's time to change the tire
This is an incorrect sentence because you should change a tire before you see the wear bar. At the time you see the bar, you should've already changed it. </span>
