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.
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
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