The universe is almost ______________ years old.

4.5 billion

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4.5 million

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20 billion

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20 million

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Solution

The correct option is C 20 billion
The universe is 20 billion years old and earth was formed in solar system of Milky Way galaxy of universe about 4.5 billion years ago.

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The universe is almost ______________ years old.

The correct option is C 20 billionThe universe is 20 billion years old and earth was formed in solar system of Milky Way galaxy of universe about 4.5 billion years ago.

The correct option is C 20 billion
The universe is 20 billion years old and earth was formed in solar system of Milky Way galaxy of universe about 4.5 billion years ago.