Natural sources of background radiation include: 1  Cosmic rays-radiation that reaches the Earth from space. 2  Rocks and soil-some rocks are radioactive and give off radioactive radon gas.atural sources. Natural sources of background radiation include: 1  Cosmic rays-radiation that reaches the Earth from space. 2  Rocks and soil-some rocks are radioactive and give off radioactive radon gas. 3  Living things-plants absorb radioactive materials from the soil and these pass up the food chain.
Rapper Kayo Redd, younger brother of hip-hop star Waka Flocka Flame, died yesterday in Atlanta. More News. Redd recently released a mixtape, Redd Kisses, and promoted it just hours before he died. The cause of his death has not been officially released; conflicting reports pin it to a shooting in his old neighborhood or suicide.
Cali Swag District's JayAre Has Died. Cali Swag District's JayAre Has Died. The Teach Me How to Dougie rapper suffered from sickle cell anemia. JayAre, born Cahron Childs (middle), died from cardiac arrest on Friday. According to MTV News, the rapper, who battled sickle cell anemia, was admitted to the hospital on Thursday for undisclosed reasons. He suffered the fatal heart attack during his stay.