Gurmeet singh Asked a Question
November 2, 2020 12:26 ampts 30 pts
.The boundaries between .. seem to coincide with major changes in the life forms present on earth. A. Precambrians B. Systems C. Eras D. Epochs
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  • Rahul kumar Best Answer
    Answer (C) Eras The boundary between Eras coincides with the major changes in the life forms. For eg, transition from Archaean to Paleozoic leads to the development of hard-boiled...
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    Gurmeet singh
    sir i was thinking- system/period can be good ans as became very specific as Devonian as of fish, Cambrian as age of trilobite...
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