MPSC PYQ

MPSC Combined 2023 GS Paper 1 — Question 29

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पश्चिम पॅसिफिक महासागराच्या किनारवर्ती भागात प्रामुख्याने सागरीगर्ता आढळतात कारण Trenches are found mainly along the coast of the western Pacific Ocean because

a)पॅसिफिक महासागराच्या पश्चिमेकडील किनारवर्ती भाग अधोगमन क्षेत्राचा आहे / The western margin of the Pacific Ocean is the sub-duction zone✓ Correct
b)पॅसिफिक महासागराच्या पश्चिम किनारी भागाला समांतर पर्वतरांगा पसरल्या आहेत / Along the western border of the Pacific Ocean parallel mountain ranges are aligned
c)पॅसिफिक महासागराच्या पश्चिमेकडील भागात खंडान्त उतार तीव्र आहे / The continental slope of the western part of the Pacific Ocean is steep
d)पॅसिफिक महासागराच्या पश्चिमी भागात सागरीगर्ता मोठ्या प्रमाणावर आढळतात / The western part of the Pacific Ocean is characterised by a large number of trenches

Oceanic trenches are formed along convergent plate boundaries (subduction zones) where oceanic crust sinks beneath another plate, prominently seen in the western Pacific margin.