Match the events leading to the origin of life listed under column I with the time frame given under column II; choose the right answer which gives the correct combination of the alphabets of the two columns:
$\begin{matrix} Column-I & Column-II Events & Time Frame A & Origin of universe & p & 3 billion years ago B & Origin of earth & q & 4.6 billion years ago C & Origin of stars & r & 10 billion years ago D & Origin of life & s & 14 billion years ago t & 5 billion years ago \end{matrix}$

A = s, B = t, C = r, D = p

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A = r, B = t, C = s, D = p

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A = s, B = q, C = r, D = p

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A = r, B = t, C = s, D = q

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Solution

The correct option is C
A = s, B = q, C = r, D = p

Studies have revealed that the universe really did have a beginning. According to the Big Bang theory, it is believed that the universe is approximately 14 billion years old. The planet earth (supposed to be unimaginably huge for us) is only a minute speck in the universe. In comparison, the earth is to the universe, what an atom is to the earth itself. This planet, we are told, originated around 4.6 billion years ago, and stars, about 10 billion years ago. On the earth, life is believed to have originated about 3 billion years ago.

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