The Earth is at least 4.4 billion years old.
The earth is roughly 4.5 billion years old. We know this to be the case because we have dated rocks from the moon that old, and earth must be at least as old as our moon.
Earth is thought to be 4.5-4.6 billion years old.
The Earth is about 4.5 billion years old. Life appeared on Earth about 3.5 billion years ago. The Earth would have been about 1 billion years old at that time.
Since earth first achieved dynamic balance (became a globe) is about 4.5 billion years.
Scientists believe that the Earth is approximately 4.5 billion years old based on radiometric dating of rocks and meteorites.
4.Approximately how old is the Earth?
How old do scientists calculate the Earth
4.Approximately how old is the Earth?
the earth is 874 years old.
earth is about 4 billion years old
Earth is approx. 4,550,000 millennia old. 1 millennium = 1000 years.
In science class I learned that earth is approximately 4.6 billion years old.
Planet Earth is 4.567 billion years old.
you can be an old earth but it won't work
Earth is approximately 4.6 billion years old.
Earth is about 4.5 to 4.6 billion years old.
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