Physics, 03.02.2021 01:30 DEVORIA2001

Justin is comparing two different rocks that contain distinct layers. He wants to know if any of the layers of the two rocks were from the same period in time. Why is using index fossils a useful
method for comparing the age of rock layers?
Time Ru
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1 Hour,
They are widely distributed and the organisms existed for a long time period.
They are narrowly distributed and the organisms existed for a long time period.
They are widely distributed and the organisms existed for a short time period.
They are narrowly distributed and the organisms existed for a short time period.

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Justin is comparing two different rocks that contain distinct layers. He wants to know if any of the...