Answer:
Volcanoes can erupt and spread lava, rock, and ash for several miles.
Earthquakes can leave large cracks in the earth's surface.
Step-by-step explanation:
The main idea of a text is the main point the author is making. Here, it is represented by the first sentence: There are several events that can change the earth's surface very quickly.
Supporting detail sentences are sentences that provide additional information about the main idea of a text. They clarify, explain, describe, expand, and illustrate it. In the given paragraph, supporting detail sentences are:
Volcanoes can erupt and spread lava, rock, and ash for several miles.
Earthquakes can leave large cracks in the earth's surface.
They give us examples of events that can change the earth's surfaces, supporting the main idea.
Step-by-step explanation: