When light enters a pair of glasses, it when it hits the glass. a) conducts b) diffracts c) reflects d) refracts

D) refracts

It refracts due to the uneven deviations on the surface of the glass. But, in some cases if the surfaces of the glass is even the light rays will pass straight through the glass without refracting.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error