QuestionJune 5, 2025

How long after the Earth was formed did it take to achieve the state we recognize now? About 500 millior years. About 1 billion years. About 10-20 million years. About 100 million years.

How long after the Earth was formed did it take to achieve the state we recognize now? About 500 millior years. About 1 billion years. About 10-20 million years. About 100 million years.
How long after the Earth was formed did it take to achieve the state we
recognize now?
About 500 millior years.
About 1 billion years.
About 10-20 million years.
About 100 million years.

Solution
4.6(131 votes)

Answer

About 500 million years. Explanation 1. Identify Earth's Formation Timeline Earth formed approximately 4.5 billion years ago. 2. Determine Current Recognizable State The state we recognize now, with stable continents and oceans, was achieved around 3.8 billion years ago. 3. Calculate Time to Achieve Recognizable State Subtract the time of formation from the time when the recognizable state was achieved: 4.5 - 3.8 = 0.7 billion years or 700 million years. 4. Compare with Given Options Closest option is about 500 million years.

Explanation

1. Identify Earth's Formation Timeline<br /> Earth formed approximately 4.5 billion years ago.<br /><br />2. Determine Current Recognizable State<br /> The state we recognize now, with stable continents and oceans, was achieved around 3.8 billion years ago.<br /><br />3. Calculate Time to Achieve Recognizable State<br /> Subtract the time of formation from the time when the recognizable state was achieved: $4.5 - 3.8 = 0.7$ billion years or 700 million years.<br /><br />4. Compare with Given Options<br /> Closest option is about 500 million years.
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