Answer:
Bombardment by asteroids
Explanation:
All of the other ones explain themselves
Religion and science are fundamentally incompatible. They disagree profoundly on how we obtain knowledge of the world. Science is based observation and reasoning from observation. Religion assumes that human beings can access a deeper level of information that is not available by either observation or reason.
Since a percentage is out of 100, do the % / 100
Divide the percent by 100
I would believe it to be 55g. A -> B YIELDS AB. So, 10g + 45g = 55g.