Question

How Was The Earth's Crust Formed ?​

Answer 1

Earth and other planets formed about 4.6 billion years ago. They were made of the leftover gas from the nebula that made the Sun.

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Answer 2

Earth's mantle and crust formed about 100 million years after the formation of the planet, about 4.6 billion years ago. At first the crust was very thin, and was probably changed often as the tectonic plates shifted around a lot more than they do now.