Options A and D are true. The other two options are absurd and not even based on fact while A & D are true concerning this part of Africa at that time.
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Deep ocean currents don't move as much XD
Answer:Nicholas Steno first formulated the principles that allow scientists to determine the relative ages of rocks in the 17th century. Steno stated that sedimentary rocks are formed in continuous, horizontal layers, with younger layers on top of older layers.
Explanation:
C. ice melting...
hope this helps!!
