How are trenches formed

Answer 1

Trenches are formed through a combination of tectonic activity, erosion, and sediment deposition. Tectonic forces, such as the movement of tectonic plates, can cause the Earth's crust to buckle and fold, creating deep trenches. Erosion from water, ice, and wind can also carve out trenches in the Earth's surface over time. Additionally, sediment deposition, where sediment is deposited in low-lying areas, can contribute to the formation of trenches. Over millions of years, these processes can result in the formation of deep and elongated trenches on the Earth's surface.