MCQ
A periodic change is a change:
- AThat get repeated many a times in our life.
- ✓That get repeated after a certain definite interval.
- CThat never get repeated.
- DAll the above.
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S.No.
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Column - $I$ (Fiber)
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S.No.
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Column-$II$(Source)
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$A.$
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Jute
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$(p)$
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Fleece of sheep
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$B.$
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Wool
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$(q)$
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Plant source
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$C.$
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Nylon
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$(r)$
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Cocoon of silk worm
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$D.$
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Silk
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$(s)$
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Synthetic
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