किस विकल्प में केवल संकेत आधारित स्रोत हैं?
Which option contains only clue based sources?
Explanation opens after your attempt
Correct Answer
A. भूकंपीय तरंगें गुरुत्वीय मापन चुंबकीय अध्ययनSeismic waves gravity measurement magnetic study
Concept
These sources give geophysical clues rather than real samples. Exam tip: treat clue based sources as indirect.
Why this answer is correct
The correct answer is A. भूकंपीय तरंगें गुरुत्वीय मापन चुंबकीय अध्ययन / Seismic waves gravity measurement magnetic study. These sources give geophysical clues rather than real samples. Exam tip: treat clue based sources as indirect.
Exam Tip
ये स्रोत वास्तविक नमूना नहीं बल्कि भू-भौतिक संकेत देते हैं। परीक्षा में संकेत आधारित स्रोतों को अप्रत्यक्ष मानें।
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