A sample of 100 students shows that 16 have smooth chins (recessive allele to cleft chin). Calculate the number o heterozygous students.​

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.

answer; i believe is(b)converging