MCQ
Wind mills produce energy and convert it into:
- AHeat energy.
- BLight energy.
- CSound energy.
- ✓Electrical energy.
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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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$A.$
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Tap root
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$(p)$
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The part of leaf.
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$B.$
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Fibrous roots
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$(q)$
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The main root of plants with reticulate venation.
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$C.$
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Stem
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$(r)$
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Found in plants with parallel venation.
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$D.$
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Petiole
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$(s)$
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Conducts water.
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