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Types of Rocks and Rock Cycle Video Lecture | Geography Class 11 - Humanities/Arts

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FAQs on Types of Rocks and Rock Cycle Video Lecture - Geography Class 11 - Humanities/Arts

1. What are the three main types of rocks?
Ans. The three main types of rocks are igneous, sedimentary, and metamorphic.
2. How are igneous rocks formed?
Ans. Igneous rocks are formed when molten rock, called magma, cools and solidifies. This can happen either above the Earth's surface, resulting in extrusive igneous rocks, or below the surface, resulting in intrusive igneous rocks.
3. What is the rock cycle?
Ans. The rock cycle is a continuous process that describes how rocks are formed, transformed, and recycled over time. It involves processes such as weathering, erosion, deposition, heat, pressure, melting, and solidification.
4. How are sedimentary rocks formed?
Ans. Sedimentary rocks are formed through the accumulation and cementation of sediments. Sediments can include particles of minerals, rocks, or organic materials that are transported and deposited by wind, water, or ice.
5. What is the process of metamorphism?
Ans. Metamorphism is the process by which existing rocks undergo changes in their mineral composition, texture, or structure due to high temperatures, pressure, and/or chemical reactions. It typically occurs deep within the Earth's crust.
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