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Video: How do we know the age of the Earth?

The Earth is 4.565 billion years old, give or take a few million years. How do scientists know that? Since there's no "established in" plaque stuck in a cliff somewhere, geologists deduced the age of the Earth thanks to a ...

dateOct 23, 2017 in Earth Sciences
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US geologists link small quakes to fracking

Geologists in Ohio have for the first time linked earthquakes to the intensely scrutinized drilling method called hydraulic fracturing, or fracking, leading the state to issue new permit conditions Friday in certain areas ...

dateApr 12, 2014 in Environment
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