Answer: Volcanic eruptions are responsible for releasing molten rock, or lava, from deep within the Earth, forming new rock on the Earth's surface.... Even though volcanoes are in specific places on Earth, their effects can be more widely distributed as gases, dust, and ash get into the atmosphere. Volcanoes change the earth's surface by allowing molten rock, or magma, to escape the earth and create rock formations or mountains.
Hope this helps..... Stay safe and have a great Christmas!!!!!!!! :D