New evidence suggests that the collapse of Egypt’s old kingdom some 4,000 years ago was caused by environmental catastrophe rather than internal social upheaval. Ocean sediments reveal a period of global cooling at the time, a condition generally associated with extended droughts. There were, no time, but they resulted from a severe dry spell.
What this question is testing
Your task
Find the choice that makes the argument's conclusion more likely to be true.
Common trap
Answers that are consistent with the argument but add no real support, or that strengthen a claim the argument doesn't make.
Winning move
Locate the gap between evidence and conclusion, then pick the choice that closes it.
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