PLZ help Fuel-cell cars use hydrogen gas and release ___ into the atmosphere

A. Oxygen gas
B. Carbon dioxide
C. Fossil Fuels
D. Water vapor

Science (A P E X)

D. Water vapor

Hope this helps!

D water vapors

Explanation:

A. An excess of sunlight can bring about green growth abundance, which stifles out other sea-going life. 
b. The profundities and saltiness will make it so just species that can live in profound saline water can live there. 
c. Occasional changes change water temperatures and cause amphibian life to go further in the winter to abstain from being solidified