A series of volcanic eruptions released large amounts of carbon dioxide into the atmosphere, increasing the greenhouse effect and leading to global warming. A large meteorite slammed into the Earth, throwing vaporized rock and debris into the atmosphere, which resulted in dramatic climate change, including acid rain. Beneficial traits acquired within an individual's lifetime can be passed on to offspring. Organisms produce more offspring than can survive, and survival is not random but related to inherited characteristics. All of the above.
Water remains in the liquid state over a wide range of temperatures.
All of the above. None of the above. When you examine the results, you find that you do have amino acids and that they are all of the left-handed structure type. You've probably synthesized some amino acids, but your sample was obviously contaminated with existing terrestrial amino acids. Your sample was somehow contaminated with existing terrestrial amino acids, and unfortunately, you haven't synthesized any new ones.