you are so right @gavvet, I agree with you that death is something that is needed in this life, all reason can think, how the state of the world if ever since adam until now there is no death. but in my opinion the first die in the world is the son of adam, habil, during the dispute with his brother qabil. the natural resources of the earth according to its time, which will eventually be exhausted all, the earth will find its death.
thank you @gavvet.