MPSC Rajyaseva 2023 GS Paper 1 — Question 20
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खालीलपैकी कोणता जलजन्य खडकचा गुणधर्म नाही ? Which of the following is not a characteristic of sedimentary rock ?
1)एकाच खडकाच्या थरात अनेक आकाराचे कण संघटित झालेले असतात. / Particles of many sizes are organized in a single rocks layer.
2)खडक अवाढव्य आकाराचे असून कठीण असतात. / The rocks are huge and hard.
3)खडकात प्रामुख्याने जीवावशेष आढळतात. / Fossils are mainly found in rocks.
4)खडक मृदू असतात, त्यामुळे त्यांची झीज लवकर होते. / Rocks are soft, so they wear out quickly.✓ Correct
Sedimentary rocks (जलजन्य खडक) are formed by accumulation of sediments, are generally layered or stratified, and contain fossils. Non-characteristic features like being formed purely from molten magma belong to igneous rocks.