Pronunciation of the English word helium.
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1. | It is, moreover, very difficult to explain in any other way why there should be so much helium in the universe. | |
2. | Jupiter is a planet principally composed of hydrogen and helium. | |
3. | Helium, neon, argon, krypton, xenon and radon are noble gases. | |
4. | Tom filled the balloons with helium. | |
5. | Helium is a gas. | |
6. | Mercury's atmosphere is very thin and is composed of helium and sodium. | |
7. | Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen, and 0.9% argon. The other 0.1% consists of water vapor, carbon dioxide, neon, methane, krypton, helium, xenon, hydrogen, nitrous oxide, carbon monoxide, nitrogen dioxide, sulfur dioxide, and ozone. | |
8. | Jupiter is made mostly of hydrogen and helium gases. | |
9. | Jupiter's atmosphere is thought to be composed of hydrogen, helium, sulfur, and nitrogen. Clouds in the atmosphere move in alternating bands from east to west or west to east. | |
10. | Uranus' atmosphere is made up of hydrogen, helium, and methane. |