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Find number abc

If 691c5 - a492a = a41b2 find number abc. Multiple solutions may exist.

Correct answers: 26

The first user who solved this task is Nílton Corrêa de Sousa.

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F. Sherwood Rowland

Born 28 Jun 1927; died 10 Mar 2012 at age 84.Frank Sherwood Rowland was an Armenian chemist who shared the 1995 Nobel Prize for Chemistry with chemists Mario Molina and Paul Crutzen for research on the depletion of the Earth's ozone layer. Working with Molina, Rowland discovered that man-made chlorofluorocarbon (CFC) propellants accelerate the decomposition of the ozonosphere, which protects the Earth from ultraviolet radiation from the sun.

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