MCQ
Why does a plant bend towards sunlight?
- ✓To prepare food.
- BTo respire.
- CTo absorb food.
- DTo absorb water.
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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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Tran parent.
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$(p)$
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Butter paper.
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$B.$
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Opaque.
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$(q)$
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Window glass.
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$C.$
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Translucent.
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$(r)$
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Copper.
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$D.$
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Lustre.
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$(s)$
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Wood.
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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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