Answer:
In this, the controlled variables are stirring and type of sugar. As more stirring might elevate the amount of sugar that dissolves, and different kind of sugars might dissolve in distinct concentrations. So, in order to make sure a fair test, there is a need to keep these variables similar for each cup of water.
Explanation:
A. Longer
The shortest wavelength on the left side is Gamma rays. The longest are radio so as you move to the right, it gets longer.
A situation where friction would be desirable is rubbing your hands together to make them warm in the winter time.
Answer:
I think so, I dont exactly know how to explain it, sorry
Explanation:
