Which of these is a characteristic of index fossils? 1. Found in the topmost rock layer
2. Found in many layers of the same rock
3. Have already established relative age
4. Are limited to a particular geographic location

Pretty sure it is 3.

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Ithink is a i believe

"central america is subject to fierce which drop large amounts of on the region. another threat in the region is activity such as earthquakes and volcanoes caused by the shifting of the earth's large waves called may result in mass destruction. frequently crops are wiped out causing in the region." where is the question