Question

this 9th class social text book
1st lesson OUR EARTH
Question and Answers please say questions and answers please help me​

Answer 1

भूकंप लहरींचे तीन प्रकार पडतात- प्राथमिक लहरी, दुय्यम लहरी, भूपृष्ठ लहरी

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