History of Earth the third atmosphere, rich in oxygen, emerged when bacteria began to produce oxygen about 2.8 Ga. In early models for the formation of the atmosphere and ocean, the second atmosphere was formed by outgassing of volatiles from the Earth's interior. Now it is considered likely that many of the volatiles were delivered during accretion by a process known as "impact degassing" in which incoming bodies vaporize on impact. The ocean and atmosphere would, therefore, have started to form even as the Earth formed. The new atmosphere probably contained water vapor, carbon dioxide, nitrogen, and smaller amounts of other gases. Planetesimals
Gas-s-s-s and he only made one more movie before a twenty-year sabbatical. " A great deal of care went into what I was saying and how I was going to say it," he said of "Gas-s-s-s". "The finished picture does not evidently make all these points. It discourages me and so for a little while I prefer to step away ... Directing is very hard and very painful. Producing is easy. I can do it without really thinking about it." Corman did, however, go on to produce "Boxcar Bertha" for AIP. "Gas-s-s-s" found a fresh audience on late night television in