MCQ
A transparent substance is one that:
- ✓Allows the light to pass through it.
- BDoes not allow the light to pass through it.
- CAllows light partly to pass through it.
- DNone of the above.
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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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Aquatic animals
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$1.$
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Sail boat
|
|
$b.$
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Mountaineers
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$2.$
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Soot and dust
|
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$c.$
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Factories
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$3.$
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Oxygen cylinders
|
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$d.$
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Wind
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$4.$
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Dissolved oxygen
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