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Find number abc

If 6bbc6 - ca964 = 3cb6c find number abc. Multiple solutions may exist.

Correct answers: 2

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Rudolf Oskar Robert Williams Geiger

Died 22 Jan 1981 at age 86 (born 24 Aug 1894).German meteorologist who was one of the founders of microclimatology (the study of the climatic conditions within a few metres of the ground surface). His observations, made above grassy fields or areas of crops and below forest canopies, elucidated the complex and subtle interactions between vegetation and the heat, radiation, and water balances of the air and soil.

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