In most of the fiction films aliens are coming to earth and fights against us to take over the planet why?
The main reason for that if something like that happens is because its their need to search for a hospitable planet . The green planet is an ideal place for life forms to exist. So one day life one earth itself total up the earth by using all the resources and become like aliens to wander over the universe.
What are your views?
Ideas for Green Eatrh