Other crossword clues for answer "NITROGEN"NITROGENMuch of the airNearly 80% of the atmosphereAlmost 80% of the Earth's atmosphere80% of Earth's atmosphereAir, mostlyAmmonia componentProduct of star fusionMost of the atmosphereThe atmosphere, mostlyAlkaloid constituent, by definitionMain element in airDiscovery of Daniel RutherfordFour-fifths of the earth's atmosphere.Atomic number 7.Essential for plant growth.Important element.Essential of life.Large part of the atmosphere.Explosive elementIngredient of airFour-fifths of the atmosphereIt's in the airPrimary constituent of airBiggest part of airThe majority of airMost of the airAbundant element in the Earth's atmosphere