which best describes eras and periods?\no eras have a smaller time span than periods.\no eras and periods…

which best describes eras and periods?\no eras have a smaller time span than periods.\no eras and periods are independent of each other.\no eras and periods both appear at the start of the cambrian period.\no eras were more recently established on the time scale than periods.

which best describes eras and periods?\no eras have a smaller time span than periods.\no eras and periods are independent of each other.\no eras and periods both appear at the start of the cambrian period.\no eras were more recently established on the time scale than periods.

Answer

Brief Explanations:

In geological time - scale, eras are larger units of time than periods. Eras are composed of one or more periods. They are not independent as periods are part of eras. The Cambrian period is part of the Paleozoic era, and eras are not more recently established than periods.

Answer:

None of the above options are correct.