Can someone please help me with this asap

Layer D

Explanation:

Since Layer D and Layer C are on the same elevation, we could assure that a fossil is found on these layers while Layer B, A, and F are above Layer C in which is less likely to find a fossil on these layers than on Fossil D.

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.