The enzymes in pancreatic juice that are responsible for the digestion of proteins.

a. amylase and lipase

b. trypsin and chymotrypsin

c. amylase and bile

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.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.