GRE Reading Comprehension: ETS-GRE阅读ETS - FDN82T12L1JDJ3XC7

It can be inferred from the passage that which one of the following was true of the lava that erupted in India at the end of the Cretaceous period? A. It contained less carbon dioxide than did the meteorites that were striking the Earth's surface during that period. B. It was more dense than the molten rock, located just above the Earth's core. C. It released enough iridium hexafluoride into the atmosphere to change the Earth's climate dramatically. D. It was richer in iridium than rocks usually found on the Earth's surface. E. It was richer in iridium than were the meteorites that were striking the Earth's surface during that period.