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What process allows sediment to move across Earth's surface?

  1. Wind erosion

  2. Water erosion

  3. Low pressure system

  4. Glacial erosion

The correct answer is: Water erosion

Water erosion is the process that allows sediment to move across Earth's surface. Wind erosion, although it does move sediment, is not the primary process responsible for sediment movement. Low pressure systems, commonly known as hurricanes or typhoons, can also contribute to sediment movement but are not the main process. Glacial erosion, which is the movement of sediment by a glacier, is typically a slow process and not as widespread as water erosion. So, the primary process for moving sediment across Earth's surface is water erosion.