(Question)
Because all electromagnetic waves travel at the same speed through space, a wave with a shorter wavelength must have a higher frequency, and vice versa.  Having read the above passage, choose the right answer to the following question (choices are lower or higher ):   Don sees wavelengths using a spectrometer. A wavelength that is very short likely has a lower or higher frequency compared to a longer one?
(Answer)
higher


(Question)
At higher elevations, there is less air to press on a given area.  Having read the above passage, choose the right answer to the following question (choices are was not or was ):   Dane was on a mountaintop and getting plenty of air, so a higher elevation was not or was out of the question?
(Answer)
was not


(Question)
More recently, the death rate has fallen because of the availability of more food and medical advances.  Having read the above passage, choose the right answer to the following question (choices are increased or decreased ):   Ian's town had fewer deaths this year since the food supply changed, which means that this year the food amounts were increased or decreased?
(Answer)
increased