Q. Which among the following landforms is formed by the action of a geologic rift or fault?
Answer: Rift Valley
Notes: A rift valley is a long, narrow valley that forms where the Earth's crust is being pulled apart and is typically associated with the process of continental rifting. Rift valleys are often found along the boundary between two tectonic plates, and they are typically steep-sided and bounded by faults. As the plates move apart, the ground between them sinks, forming a depression that eventually becomes a valley. This process can take millions of years, and over time, the rift valley can become filled with sediment and other materials, forming a lowland area.