Which of the following things does NOT scientifically support evidence of common ancestry? A. The fossil record
B. The relationship between T. rex and chickens
C. Developmental homologies
D. Anatomical homologies

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.

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

there's the proffessional site that will you.