If a 10-Mile-Wide Comet Hit Earth,how Would This Likely Affect

question 80

Multiple Choice

If a 10-mile-wide comet hit Earth,how would this likely affect the history of life?

• A)A mass extinction would occur, followed by lots of evolutionary change among descendants of the survivors.
• B)A slow climate warming and drying would begin, decreasing the biological diversity on Earth.
• C)Continental drift would be reversed, and all the continents would slowly be pushed together again.
• D)Most species would become extinct, and the rest would remain more or less unchanged.