Everyday Science
Which gas is used to extinguish the fire.
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Goitre is associated with___________?
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The Quantity of matter present in an object is its ________?
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Gas used in balloons?
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Folic acid _________
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Bats are —–animals:
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What gives the human brain its energy?
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Walnuts can be broken in the hand by squeezing two together but not one. it is because of.
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To kill bacteria in filtration plants ______ is used.
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