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How do we know The Age of The Earth?
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Our planet is ~4.5 billion years old. But, How do we know it?
First, let's understand how we measure the age of rocks. To do so, scientists use Radiometric Dating methods. In this method, scientists take a part of the rock and measure how much radioactive material has decayed. Then scientists compare it with known decay rate and calculate when the material was melted last time.
In Canada, researchers have found some of the oldest rocks that are about 4.03 billion years old. Scientists have used the same technique on minerals and have found minerals that are 4.3 billion years old. But rocks and minerals are contradictory, we need something else.
As we know, objects in solar system are formed at roughly the same time. Scientists analyzed moon rocks collected from moon landings and some meteorites that have crash-landed on Earth. Both of these materials are 4.4 to 4.5 billion years old. Which means, our planet is ~4.5 Billion years old.
What if All Viruses Disappeared?
First, let's understand how we measure the age of rocks. To do so, scientists use Radiometric Dating methods. In this method, scientists take a part of the rock and measure how much radioactive material has decayed. Then scientists compare it with known decay rate and calculate when the material was melted last time.
In Canada, researchers have found some of the oldest rocks that are about 4.03 billion years old. Scientists have used the same technique on minerals and have found minerals that are 4.3 billion years old. But rocks and minerals are contradictory, we need something else.
As we know, objects in solar system are formed at roughly the same time. Scientists analyzed moon rocks collected from moon landings and some meteorites that have crash-landed on Earth. Both of these materials are 4.4 to 4.5 billion years old. Which means, our planet is ~4.5 Billion years old.
What if All Viruses Disappeared?
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