Saturday, April 29, 2006

Qn: 624

Scientists have suggested that once every 10 million years or so a truly colossal object from space cuts through the atmosphere and slams into Earth, sending up a global pall of dust that blots out the Sun, alters the climate, and changes the course of evolution by killing off many plant and animal species.

(A) sending up a global pall of dust that blots
(B) thus sending up a global pall of dust to blot
(C) thereby sending up a global pall of dust to blot
(D) and that sends up a global pall of dust, blotting
(E) which sends up a global pall of dust, blots

Official Answer: A


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posted by Ravi at Saturday, April 29, 2006

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