it is also the lightest element isotopes are atoms of the same element with different numbers of neutrons in ancient times the elements referred to fire earth water and air helium is the second most common element in the universe but is very rare on the earth
Featherweight is a weight class in the combat sports of boxing, kickboxing, mixed martial arts and Greco-Roman wrestling.
Conor Anthony McGregor (born 14 July 1988) is an Irish mixed martial artist who currently competes in the featherweight division of the Ultimate Fighting Championship. He is the current UFC Interim Featherweight Champion. McGregor is also the former Cage Warriors featherweight and lightweight champion.ith his boxing background as a base, he also trained in Taekwondo, Karate, Capoeira and Kickboxing prior to competing in professional MMA. After his bout with Dustin Poirier at UFC 178, Kavanagh promoted McGregor to his Brazilian jiu-jitsu brown belt.