A) Helium
B) Argon
C) Xenon
D) None of these
- Helium is a light, colorless gas that is lighter than air, so it makes balloons float.
- It is used in important areas like cooling machines in hospitals, especially MRI scanners, because it stays very cold without freezing.
- Helium is rare and hard to get, so saving it is important because it helps in science, medicine, and technology.
🧠 Explanation:
Helium is used in balloons and airships for its lifting properties. Knowing this helps students and science enthusiasts understand gas applications. Helium is key for studying physics or chemistry in school. Learning this helps with science projects or exploring gas uses. It’s useful for science classes, making it relevant for understanding buoyancy. Knowing helium’s role helps students grasp its importance, ensuring better comprehension for academic work or general knowledge about gas applications.
