Similar to volcanoes on land, seafloor volcanoes erupt episodically, and their effects on the ocean environment are most profound during the early stages of eruption.
(seafloor volcanoes; erupt episodically; T:Similar to volcanoes on land) (their effects on the ocean environment; are; most profound; T:during the early stages of eruption)
seafloor volcanoes their effects on the ocean environment
erupt episodically are
T:Similar to volcanoes on land
most profound T:during the early stages of eruption