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777dan777 [17]
3 years ago
5

Fuel-cell cars use hydrogen gas and release ______ into the atmosphere.

Chemistry
2 answers:
iogann1982 [59]3 years ago
7 0
Hi!

Fuel-cell cars only release water and heat in the atmosphere. 

Since they are only run by oxygen and hydrogen to produce electricity in the motor, they don't emit carbon dioxide or greenhouse gas as what other people think. 

Basically, automotive engineers and scientist classified them as zero-emission.  
Sergio [31]3 years ago
5 0

Answer:water vapor

Explanation:

I just took the test

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