Correct Option
The correct option isLandslides
Explanation
Exogenic forces (or external forces) derive their energy primarily from the sun and the atmosphere. These forces result in denudation, which includes weathering, mass wasting, erosion, and deposition. To perform erosion and transportation, nature employs specific mobile mediums known as Geomorphic Agents.
Analysis of Options
- Wind: Wind is a mobile medium that erodes, transports, and deposits material, making it a primary geomorphic agent, especially in arid regions.
- Sea-waves Sea-waves: Waves and currents act as powerful mobile agents responsible for coastal erosion and deposition.
- Glaciers: Moving ice (glaciers) acquires and transports vast amounts of rock debris, classifying it as a geomorphic agent.
- Landslides: A landslide is a form of Mass Wasting (or Mass Movement). While mass wasting is an exogenic process, the landslide itself is not an agent. An agent refers to a running medium (like water, air, or ice). In landslides, the driving force is gravity acting directly on the material, rather than a flowing medium carrying the debris.
Key Takeaway
Geomorphic Agents are mobile media (Running Water, Groundwater, Glaciers, Wind, Waves) that transport material. Landslides are movements caused by the force of gravity (Mass Wasting) and are not considered distinct agents themselves.