*Question*
Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance.  Having read the above passage, choose the right answer to the following question (choices are increases or decreases ):   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.  Having read the above passage, choose the right answer to the following question (choices are more or less ):   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.  Having read the above passage, choose the right answer to the following question (choices are less or more ):   Planets moving closer together will have less or more magnetic attraction?
**Answer**
more

*Question*
The development of better missiles fostered better rocket technologies.  Having read the above passage, choose the right answer to the following question (choices are worse or better ):   Ollie is a rocket scientist and was testing missiles. Better missiles likely result in worse or better rockets?
**Answer**
better