Answer:
It is a gruesome form of betray.
Mountains will crumble and temples will fall, and no man can survive its endless call. What is it?
Without this, H2O would just be 2O
What is always coming but never arrives?
In a year, there are 12 months. Seven months have 31 days. How many months have 28 days?
In birth I spring forth, in life I unfold. In death I wilt and die, but rebirth restores all.