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Unformatted text preview: The surface of Earth is constantly changing from 1. continental drift 2. water (rain, rivers) = erosion 3. wind = erosion 4. chemistry - water and air react with rock If a spaceship landed on Earth and sampled the soil, age would be millions of years. The oldest rocks on earth, however, are billions of years old. So we need to be careful about judgements we make from examining surfaces...
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This note was uploaded on 03/09/2012 for the course AST 1002 taught by Professor Emilyhoward during the Spring '10 term at Broward College.
- Spring '10