Often has a unique characteristic that is being measured or compared with the base.

Between 2014 and 2016, more than 25,000 children in flint, michigan, drank water that was contaminated with lead from lead pipes. during this time, the city claimed the water was safe to drink. which of these actions could the city have taken to ensure that the drinking water was free from lead?

What happens when the temperature of a solution increases?

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.