2 theories exist for the origin of water on Earth: Did comets transport water? Or was there degassing from volcanoes from rocks existing within the crust?
— Read on earthhow.com/origin-of-water-comets-volcanoes-outgassing/
Ontario Association of Geographic and Environmental Educators
Teacher organization supporting Geographic Education, Ontario, Canada
2 theories exist for the origin of water on Earth: Did comets transport water? Or was there degassing from volcanoes from rocks existing within the crust?
— Read on earthhow.com/origin-of-water-comets-volcanoes-outgassing/