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About 4 to 5 billion years old.
4 billion = 4,000,000,000 or 4.0 x 10^(9)
What else can I help you with?
What is the current age of the earth?
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.
What is all the time that has passed since the earth's origin?
Earth is thought to be 4.5-4.6 billion years old.
How old was earth when life appeared on it?
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.
How many eons old is earth?
Since earth first achieved dynamic balance (became a globe) is about 4.5 billion years.
How old do scientists believe the earth to be?
Scientists believe that the Earth is approximately 4.5 billion years old based on radiometric dating of rocks and meteorites.
. Approximately how old is the Earth?
4.Approximately how old is the Earth?
How old do scientist the the earth is?
How old do scientists calculate the Earth
Approximately how old is the Earth?
4.Approximately how old is the Earth?
The Earth is 4.55 billion years old how many millennia old is the earth?
Earth is approx. 4,550,000 millennia old. 1 millennium = 1000 years.
How old is the earth if it was formed in4004bc?
the earth is 874 years old.
How old is the planet Earth?
earth is about 4 billion years old
How old it the Earth?
In science class I learned that earth is approximately 4.6 billion years old.
How old is plant earth?
Planet Earth is 4.567 billion years old.
What type of resources are as old as Earth itself?
you can be an old earth but it won't work
How old is earth in 2011?
Earth is approximately 4.6 billion years old.
How old earth will be in 2013?
Earth is about 4.5 to 4.6 billion years old.
Is someone is 12 earth year old how old are they in earth days?
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