Question

90 % of marine organisms and 70% of land organisms died off due to environmental and/or climate changes during the Paleozoic Era. Please select the best answer from the choices provided T F

Answer 1

This is true. The animals that died out were mostly formed during the Cambrian Explosion, which followed the Precambrian Extinction.

Answer 2

90 % of marine organisms and 70% of land organisms died off due to environmental and/or climate changes during the Paleozoic Era. The statement presented is True. Specifically during the Permian period, there are large scale of climate change and series of big volcanic eruptions.