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Which statement is correct about the change from early Earth to modern Earth?

Answer and explanation

Correct answer: Harsh conditions gradually became life-supporting

Early Earth was not a safe or stable place for life. It had very high temperatures, volcanic activity, frequent impacts, and an atmosphere unlike the present one. With time, the planet cooled, a more stable crust formed, water collected to make oceans, and the atmosphere gradually changed. These developments created conditions in which life could survive and evolve. Therefore, option A, saying that harsh conditions gradually became life-supporting, is correct.

The word “gradually” is central because Earth did not become modern in a single event. Its transformation occurred through many connected physical and chemical changes over a very long period. The other choices contradict basic Earth history: Earth was not always like it is today, life did not precede the formation of Earth, and oceans did form after cooling and condensation. Thus, the correct idea is a slow transition from a hot, hostile planet to a more suitable environment.

Related tags

Early EarthModern EarthLife Support

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