The atmosphere is 5 times heavier than all water combined Not sure where you got that. As far as I can see from most online sources, the Earth's atmosphere w

The atmosphere is 5 times heavier than all water combined Not sure where you got that. As far as I can see from most online sources, the Earth's atmosphere weighs about 5 x 10^18 kg, but the oceans weigh about 1.3 x 10^21 kg. It makes sense that the atmosphere weighs less than the oceans if you think about it. The weight of air at sea level is about the same as 10 meters of water. The oceans cover most of the earth, and average a depth of a lot more than 10 meters.