If you don't eat meat, you can still get your iron. Tofu is a good choice. Or go for beans, like kidney, garbanzo, or white. Food from plants has non-heme iron, which means your body doesn't absorb it as well as the heme type found in meat.
Methane is a compound and therefore does not have any atomic number. It is composed of carbon with atomic number 6 and hydrogen with atomic number 1. Methane is a compound and therefore does not have any atomic number. It is composed of carbon with atomic number 6 and hydrogen with atomic number 1.
Ethane is a colorless, odorless and flammable gas with a chemical formula of C2H6 - it has two carbon (C) atoms and six hydrogen (H) atoms. It is only composed of carbon and hydrogen atoms, so it is classified as a hydrocarbon.