Final answer:
Most geologic changes that shape Earth's surface occur slowly over long periods of time.
Step-by-step explanation:
Most geologic changes that shape Earth's surface occur slowly over long periods of time. These changes are often the result of slow processes such as weathering, erosion, and deposition. For example, the gradual wearing away of a mountain over millions of years or the formation of a canyon through the slow erosion of a river.
Learn more about geologic changes on Earth's surface