science corner and questions

my best intrest is science and i can help awnser some of the questions that couldnt be solved (question 1) whats the probability of life out there. (awnser)well heres a version of drakes equasion theres 4 billion stars in our galaxy at least 2.3 billion have planets at all 1.1 bil might be in the habbitable zone at least half might have any form of life 42 0\0 have complex life 22 0\0 will recive inteligence 9 0\0 will destroy themselvs or get destroyed the rest lives up to this day when i wrote this down i got a whopping 75000 surviving civilezations WOW.