give reason (I) hydrogen is no longer used in meteorological balloons
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they won't use
Explanation:
because if hydrogen is mixed with oxygen it will be in the form of water so they won't use hydrogen in meteorological balloons
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Answer:
Because helium is lighter than air, a helium balloon rises. Hydrogen is another gas lighter than air; it is even lighter than helium. Hydrogen is not used in balloons and this demonstration shows why. Helium is a special gas called a Noble Gas, which means it doesn't burn.
Explanation:
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