Something that can not be undone. Like baking bread..cant be undone.
Answer:
the last one is wrong
Explanation:
wrong : most of the mass of an atom comes from the electrons cloud
Answer:
Landslides, Volcanoes, Earthquakes, and Floods. A opening in the Earth's surface through which melted rock, gases, and ash escape. Events in which molten rock spews out from the mantle to the surface of Earth as ash, lava, and gases
Explanation: