Erosion occurs if weathered materials such as soil and rock fragments are carried away by wind, water or ice. Many forces are involved in weathering and erosion, including both natural and man-made causes.
The type of food chain that exists in a pond is called the grazing food chain. In a pond, the producers are phytoplankton like some algae and submerged plants found at the edges. The consumers have included zooplankton and the last decomposers are some bacteria, fungi, etc found at the bottom of the pond.
