After two half-lives how much of the original isotope

Write your question here (keep it simple and clear to get the best answer) paano makakatulong sa pagkakaroon ng maayos na relasyonsa kapwa ang paggalang o pagrespeto at pagiging tapat

Ishmael wants to go on vacation with his friend's family. what's the best way he can persuade his parents to say yes? a he can tell them that he will be sad and stay in bed if he can't go. b he can explain that the vacation will be educational and safe. c he can say that he'll hate his parents if they don't let him go. d he can ask them for the money that he needs for the trip.

Asevere storm that must commonly occurs in tropical regions is a(n)