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NeTakaya
3 years ago
9

Which statement best describes an index fossil?

Chemistry
2 answers:
Radda [10]3 years ago
6 0

Answer:

A. a fossil that can be used to establish the absolute age of a rock layer

Explanation:

An index fossil happens when a plant or animal is preserved in the rock record of the Earth. It needs to be characteristic of a particular span of time or environment. For it to be really useful, the index fossil should be easily recognizable, abundant over a large area, and be present for only a short time period. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata.

Sonbull [250]3 years ago
3 0
Dezznuts and i think it would be b because that would be your best answer
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