*Question*
For a given medium, sound waves travel more slowly at lower temperatures.  Having read the above passage, choose the right answer to the following question (choices are faster or slower ):   Eric moved to Arizona from Alaska. The higher temperatures overall mean that sound travels faster or slower?
**Answer**
faster

*Question*
The longer the exposure, the more light that the telescope can gather to make the image.  Having read the above passage, choose the right answer to the following question (choices are longer or shorter ):   Mike needed to get a good picture in a dark room, but couldn't turn on a light. In order to get the brightest photo, Mike made the exposure longer or shorter?
**Answer**
longer

*Question*
For example, more people on the Earth means more people contributing to global warming and pollution.  Having read the above passage, choose the right answer to the following question (choices are more or less ):   Angel traveled from New York to Des Moines, IA , and experienced more or less pollution?
**Answer**
less

*Question*
The sooner cancer is treated, the greater the chances of a cure.  Having read the above passage, choose the right answer to the following question (choices are increased or decreased ):   If cancer is detected late and treatment immediately late, the chances of a cure would be increased or decreased?
**Answer**

decreased