Which of the following statements is true?
Venus' perihelion is almost equal to its aphelion.
Most meteoroids are made of frozen gas and ice.
Constellations look the same from space as they do from Earth.
Most asteroids are found in the asteroid belt between Earth and Mars.

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 won't lie i don't know so go online and ask google thats what i do