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Which example is mainly physical weathering rather than chemical weathering?किस उदाहरण में रासायनिक अपक्षय नहीं बल्कि मुख्यतः भौतिक अपक्षय है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: Rock breaking due to expansion of freezing water in a crackदरार में जमे जल के फैलने से चट्टान टूटना
Expansion of freezing water breaks rock mechanically. Mineral composition does not mainly change here.जमे जल का फैलना चट्टान को यांत्रिक रूप से तोड़ता है। इसमें खनिज संरचना मुख्य रूप से नहीं बदलती।
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