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Mind Map: Weathering | Geography for UPSC CSE

The document Mind Map: Weathering | Geography for UPSC CSE is a part of the UPSC Course Geography for UPSC CSE.
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FAQs on Mind Map: Weathering - Geography for UPSC CSE

1. What is weathering?
Ans. Weathering refers to the process of breaking down rocks, soil, and minerals through exposure to the atmosphere and environmental factors such as wind, water, temperature changes, and biological activity.
2. What are the two main types of weathering?
Ans. The two main types of weathering are mechanical weathering and chemical weathering. Mechanical weathering involves the physical disintegration of rocks into smaller fragments, while chemical weathering involves the alteration of the chemical composition of rocks through chemical reactions.
3. How does freeze-thaw weathering occur?
Ans. Freeze-thaw weathering occurs when water seeps into cracks in rocks, and then freezes and expands as temperatures drop. The expansion of freezing water exerts pressure on the rocks, causing them to crack and eventually break apart.
4. What is the role of vegetation in weathering?
Ans. Vegetation plays a significant role in weathering. Plant roots can penetrate into cracks in rocks, causing them to widen over time through a process known as root wedging. Additionally, the organic acids released by plants during their growth can contribute to chemical weathering by breaking down minerals in the rocks.
5. How does weathering contribute to soil formation?
Ans. Weathering is a key process in soil formation. As rocks are weathered, they are broken down into smaller particles that mix with organic material to form soil. Weathering also releases essential nutrients from rocks, making them available for plants and contributing to the fertility of the soil.
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