Pom Identify the independent variable in the following question: How does the size of a bicycle tire affect the distance it will
travel when it is pedaled in a given number of times.

a. size of a bicycle tire
b. the distance the bike will travel
c. None of the above

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.