Traditional Culture Encyclopedia - Weather forecast - The chemical formula of weather

The chemical formula of weather

[Answer] ①The substance with the highest content in the air is nitrogen; therefore fill in: N2. ②The main component of weather is methane; therefore fill in: CH4. ③The main component of green fuel often added to vehicle gasoline is ethanol; therefore, fill in: C2H5OH. ④Commonly used for painting walls...