xDANTEx2456
23.06.2019 •
Biology
Index fossils are fossils of organisms that question 6 options: lived over a short period of time are not easily recognized are not widely distributed geographically are scarce
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Ответ:
Option (1)
Explanation: Index fossils are those fossils which were present only for a short period of time and had wide geographical distribution. This fossils plays an important role in the correlation of rocks i.e two same rocks appearing at two different places, as well as, it helps in the determination of the age of rock. For example, ammonites.
Thus, the correct answer is option (1).
Ответ: