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![]() ![]() To put this into perspective, if the average human lifespan is 80 years, the Earth has been around for 57,000,000 lifetimes. That’s 4,543,000,000 years, an amount of time so immense that it’s challenging to grasp just how long it is. Apply principles of relative and absolute dating to determine the ages of rocksĮarth is 4.543 billion years old. ![]() Explain the principles of relative dating and unconformities.Illustrate the immense scale of geologic time.
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