Geologic Time Answers

oceans✔ fossilsthe atmosphere

✔ PrecambrianPaleozoicCenozoic

How are eras and periods of the geologic time scale named?

before ✔ after during

From what material did the moon form?

Fill in the blanks to complete each statement about the age of Earth.

Question text not available

Use the drop-down menus to match each description to the geologic era it describes.

Order these events from oldest (1) to most recent (4).

1 2 3 ✔ 4

✔ 1 2 3 4

1 2 ✔ 3 4

Use the drop-down menus to match each description to the geologic era it describes.

Paleozoic Mesozoic ✔ Cenozoic

✔ PaleozoicMesozoic Cenozoic

Which processes produced heat that contributed to the formation of Earth’s different layers? Check all that apply.collision of materialscompaction of materialscooling of low-density metalsradioactive decaysinking of high-density metals