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Subsystem Interactions During the Precambrian Era
In this task, you will describe the events and exchanges of matter and energy that occurred within Earth's subsystems during
the Precambrian era.
Estimated time to complete: 1 hour
Part A
Use what you learned in this unit to describe at least one way in which each of Earth's subsystems was altered during the
Precambrian era. Research additional resources as needed,
B I y X Font Sizes A - A - E 33 -
X
geosphere- partial melting of the basaltic crust beganand this created the continents.
atmosphere!

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