MCQ
Fish swims by:
- ✓Forming loops alternately on two sides of the body.
- BForming loops on single side.
- CSomersalting.
- DAlternate dipping and coming up.
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S.No.
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Column-$I$
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Column-$II$
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$A.$
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Burning of carbon in air to produce carbon dioxide.
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$(p)$
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Endothermic change.
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$B.$
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Melting of wax.
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$(q)$
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Exothermic change.
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$C.$
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A change accompanied by absorption of heat.
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$(r)$
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Physical change.
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$D.$
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A change accompanied by evolution of heat.
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$(s)$
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Chemical change.
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S.No.
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Column $I$
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S.No.
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Column $II$
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$(i)$
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Ginning
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$(a)$
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Cleaning and disentangling the fibres.
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$(ii)$
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Combing
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$(b)$
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Brushing and straightening of fibres.
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$(iii)$
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Carding
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$(c)$
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Bolls.
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$(iv)$
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Seed pods
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$(d)$
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Cotton fibres after being separated from seeds.
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$(v)$
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Lint
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$(e)$
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Separating fibres from seed.
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