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5.2 Origin of the Oceans – Introduction to Oceanography
WebThe early atmosphere would have been subject to frequent bombardment by planetesimals left over from early planetary accretion. These impacts may have brought in volatiles, but they may also have removed (to space) some of the existing atmosphere either by the momentum of the impact shock wave or heating of the upper atmosphere (see below). … WebApr 27, 2024 · Approximately 4.5 billion years ago, scientists believe that Earth collided with a planet the size of Mars. The energy from this catastrophic collision blew Earth’s existing atmosphere into space, created our Moon, and caused the entire planet to melt. Over time, this worldwide magma ocean released gases such as nitrogen, hydrogen, carbon and ... fishing book wow classic
evolution of the atmosphere - Encyclopedia Britannica
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