Final answer:
Lava from the Earth's interior causes volcanic eruptions, renewing the planet's surface by destroying old craters and generating new structures.
Step-by-step explanation:
Igneous rocks, such as lava and volcanic rocks, are created when molten material from inside or outside the Earth cools and solidifies. When magma, the molten rock inside the Earth, reaches the surface through cracks or volcanoes, it is called lava. Lava cools quickly on the surface, forming extrusive or volcanic igneous rock. The hot lava rising from the Earth's interior causes volcanic eruptions, which are the principal way the surface of a planet like Earth or Venus is renewed. The lava destroys old craters, creates fresh surfaces, and generates new volcanic mountains and structures.