Which of the following occurs during pollination in angiosperms?

a- pollen grains are transferred from the stamen's anther to the pistil's stigma.

b- pollen grains are transferred from the stamen's filament to the pistil's stigma

c- pollen grains are transferred from the pistil's anther to the stamen's stigma.

d- pollen grains are transferred from the stamen's stigma to the pistil's flagment.

A- Pollen grains are transferred from the stamen's anther to the pistil's stigma.

Explanation:

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.

littering streams           is the answer