Answer:
Permian
Explanation:
The period that came before the Triassic Period was the Permian Period. This was the last period of the Paleozoic era; with the end of the Permian Period came not just the start of the Triassic Period, but also the start of the Mesozoic Era.
Wind energy is renewable where as oil energy isn't meaning that oil will run out eventually and wind wont run out.
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