*Question*
Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance.  If Mary is cleaning her pool and she lowers the pH value of the water, what happens to the acidity of the water increases or decreases?
**Answer**
increases

*Question*
With fewer trees, the air is drier and droughts are more common.  Terry replaces cut down trees in the forest. The air is now more or less dry?
**Answer**
less

*Question*
As the distance between the objects increases the magnetic force of attraction decreases.  Planets moving closer together will have less or more magnetic attraction?
**Answer**
more

*Question*
The development of better missiles fostered better rocket technologies.  Ollie is a rocket scientist and was testing missiles. Better missiles likely result in worse or better rockets?
**Answer**
better