Hydrogen is extremely flammable and helium is safer.
helium
Helium tanks are gas tanks containing compressed helium. They are frequently used to inflate helium balloons of various sizes, ranging from standard balloons to large "bouncy" structures such as bouncy castles.
Common adjectives are used more frequently than proper ones, because there are more of them in the English language. Among types of adjectives (descriptive, demonstrative, or possessive) it would be difficult to say which is more frequently used.
Putting helium in your tires can cause them to lose pressure more quickly than if you used regular air. Helium molecules are smaller and can escape through the rubber more easily, leading to more frequent refills.
The phrase "more frequently" is in the comparative degree of comparison. It is used to compare the frequency of occurrences between two or more subjects or situations. In contrast, the positive degree would be "frequently," and the superlative degree would be "most frequently."
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How Helium is used: It is used to blow up balloons.
mostly helium is used in balloons
Hydrogen is highly flammable and can easily explode. Helium is a more stable gas.
that can helium do to you
Helium is used but it is more expensive.
Helium is used as it is/pure. Helium is an inert gas and does not form part of compounds.