Ice might have covered the oceans 3 billion years ago, as the sun was three times less luminous than it now. This layer of ice, possibly hundreds of feet thick, might have protected fragile, organic compounds in the water below from ultraviolet light and destruction from cosmicimpacts. This statement belongs to:

THE ORIGIN OF LIFE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

“Ice might have covered the oceans 3 billion years ago, as the sun was three times less luminous than it now. This layer of ice, possibly hundreds of feet thick, might have protected fragile, organic compounds in the water below from ultraviolet light and destruction from cosmicimpacts". This statement belongs to:

A	Theory of biochemical evolution
B	Chilly start
C	Deep sea vents
D	RNA world

Explanation:

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AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE