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Building a Time Line: a Brief Biological and Geological History of Earth
MyBook is a cheap paperback edition of the original book and will be sold at uniform, low price.
Life has existed on Earth for more than 4 billion years. Earth currently is the only planet known to contain life. A large diversity of life forms exists, which is a result of evolutionary process. Which life forms appeared first and when did they appear? What geological conditions set the stage for the appearance of these many diverse life forms? This activity approaches this subject by constructing biological and geological events on a time line.