Science · Preservation of Library Materials
पारंपरिक पुस्तकालय सामग्रियों के क्षरण और खराब होने के लिए निम्नलिखित में से कौन से कारक मुख्य रूप से जिम्मेदार हैं? (i) जैविक कारक (Biological Factors) (ii) विद्युतचुंबकीय कारक (Electromagnetic Factors) (iii) रासायनिक कारक (Chemical Factors) (iv) पर्यावरणीय कारक (Environmental Factors)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1केवल (i), (ii) और (iii)
- 2केवल (ii), (iii) और (iv)
- 3केवल (i), (iii) और (iv)✓
- 4केवल (i), (ii) और (iv)
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केवल (i), (iii) और (iv)
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