Answer:
I'll go with cocaine I guess
There is no definite answer of this question, and may depend on your religion. But, scientifically it is believe the universe has always existed, but the one we know today was formed after the Big Bang (Big Bang Theory) where all matter was initially together and expanded outward after the “Big Bang”. This caused this matter to move outward, even to this day.
Heracles was the famous greek hero who fought monsters and killed the nine headed hydra
The right answer for the question that is being asked and shown above is that: "the lack of fresh, clean supplies of water" Overpopulation has led to concerns over the lack of fresh, clean supplies of water. This is the correct answer.
Manifest Destiny
Have a nice day