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IIT JAM GEOLOGY - GG - Free coaching Lecture 14 - Geologic work of Running
FAQs on IIT JAM GEOLOGY - GG - Free coaching Lecture 14 - Geologic work of Running water; In English
| 1. What is the significance of running water in geological processes? |  |
Ans. Running water plays a crucial role in shaping the Earth's surface through erosion, transportation, and deposition. It helps to carve out valleys, transport sediments, and create various landforms such as riverbanks, deltas, and floodplains.
| 2. How does erosion by running water occur? | |
Ans. Erosion by running water occurs when the force of the water dislodges and removes soil and rock particles from the landscape. This process is influenced by factors such as the velocity of the water, the volume of flow, and the type of material being eroded. Fast-moving water is more effective at eroding materials compared to slower flows.
| 3. What are the main processes involved in the transportation of sediments by rivers? | |
Ans. The main processes of sediment transportation by rivers include suspension, saltation, and traction. In suspension, fine particles remain afloat in the water. In saltation, larger particles are lifted and dropped in a series of jumps. Traction involves the rolling or sliding of heavy materials along the riverbed.
| 4. What landforms are created by the deposition of sediments in running water? | |
Ans. Deposition of sediments by running water leads to the formation of several landforms, including deltas, where rivers meet larger bodies of water; floodplains, which are flat areas adjacent to rivers that are periodically flooded; and alluvial fans, which form when a river spreads out and loses velocity, depositing sediments.
| 5. How do human activities impact the geologic work of running water? | |
Ans. Human activities, such as deforestation, urbanisation, and dam construction, can significantly impact the geologic work of running water. Deforestation can increase erosion rates, while urbanisation can alter water flow patterns, leading to increased sedimentation in some areas and reduced sediment supply in others. Dams can disrupt the natural sediment transport process, affecting downstream ecosystems and landforms.
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Apr 20, 2026 Last updated
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