Actually, volcanoes have played a long and constructive role in earth’s history. According to a university Web site, as much as “90% of all the continents and ocean basins are the product of volcanism. ”
खरे पाहता, पृथ्वीच्या इतिहासात पुरातन काळापासून ज्वालामुखींचे रचनात्मक योगदानही आहे.