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Unformatted text preview: Earth Theory: A theory is an explanation of the general principles of certain phenomena with considerable facts to support it A theory remains valid only if every new piece of information supports it If a single piece of available information does not support a theory, then the theory (as proposed) is disproved Fact: An indisputable truth Example: It is a fact that on June 30, 1908 in Tunguska, Siberia, an explosion equivalent to about 15 million tons of TNT occurred. It is a theory that this explosion was due to a natural, extra-terrestrial phenomenon and not to an activity associated with man. One hypothesis is that a comet collided with the Earth (a competing hypothesis is that a small black hole collided with the Earth)...
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This note was uploaded on 11/22/2011 for the course CHEMISTRY CHM1025 taught by Professor Laurachoudry during the Fall '10 term at Broward College.
- Fall '10