<span>The number of births equals the number of deaths
*brainliest answer if possible
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The answer is.d. stromatolites hope it help
Answer:
Birth is an example of a normally occurring positive-feedback mechanism.
Im not very good with this, but
Average speed
Speed = distance over time
Take the distance and divide it by the time i got
60.8695652174
But not sure i did it correctly. Worth a shot.
