1.volcanic eruptions can change the shape of a mountain by blowing parts of it away and it can also build up the land around a volcano when lava flows out and hardens on the surface. 2. volcanic eruptions can destroy properties and kill people. 3. when lava cools and solidifies,it forms a wide flatland called plateau. 4. lahar flows cannot burry houses,buildings,trees,crops,roads and other structures. please help me what is the answer yes or no thank u