BPSC (Bihar) Exam > BPSC (Bihar) Videos > Geography for State PSC Exams > Weathering, Mass Movement & Groundwater -Examrace
Weathering, Mass Movement & Groundwater -Examrace Video Lecture | Geography for State PSC Exams - BPSC (Bihar)
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FAQs on Weathering, Mass Movement & Groundwater -Examrace Video Lecture - Geography for State PSC Exams - BPSC (Bihar)
| 1. What is weathering? |  |
Ans. Weathering refers to the process of breaking down rocks, minerals, and soils on the Earth's surface through various mechanical, chemical, and biological means. It is a natural process that occurs over time due to exposure to elements such as wind, water, temperature changes, and biological activity.
| 2. What are the different types of weathering? | |
Ans. There are three main types of weathering: mechanical weathering, chemical weathering, and biological weathering. Mechanical weathering involves physical processes such as frost wedging, abrasion, and exfoliation. Chemical weathering occurs when rocks and minerals chemically react with substances in the environment, leading to their breakdown. Biological weathering involves the actions of plants, animals, and microorganisms that contribute to the weathering process.
| 3. What is mass movement? | |
Ans. Mass movement refers to the downhill movement of rock, soil, or debris under the influence of gravity. It occurs when the forces acting on a slope or hillside overcome the strength of the material holding it in place. Mass movement can take various forms, including landslides, rockfalls, mudflows, and slumps. It is often triggered by factors such as heavy rainfall, seismic activity, or vegetation removal.
| 4. How does groundwater contribute to weathering and erosion? | |
Ans. Groundwater plays a significant role in weathering and erosion processes. As water infiltrates the ground, it seeps into cracks and pores within rocks and minerals. Over time, the water can dissolve certain minerals, weaken the structure of rocks, and contribute to their breakdown. Additionally, groundwater can erode and transport sediment as it flows through underground channels and emerges at the surface through springs or seepage.
| 5. What are the impacts of weathering, mass movement, and groundwater on the Earth's surface? | |
Ans. Weathering, mass movement, and groundwater collectively shape the Earth's surface and contribute to landscape formation. Weathering breaks down rocks, creating sediment that can be transported by mass movement processes such as landslides and erosion by groundwater. These processes can result in the formation of valleys, canyons, cliffs, and other landforms. They also influence the distribution of water resources and contribute to the overall geological evolution of the Earth's surface.
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Oct 25, 2024 Last updated |
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