Under what conditions will light bend? a) never b) when it slows down while going through space c) when it speeds up while going through space d) when it passes from one medium to another

I think the answer to your question would be D.

the volume of fluid displaced would equal the volume of the gas. use a gas syringe - this is a laboratory instrument that can be used to withdraw a certain volume of gas from a closed system or to measure the volume of gas from a chemical reaction.