- Meteorological balloons require a lifting gas lighter than air. - Safety (non-flammability) is a crucial factor for meteorological balloons. - Helium is a light, non-flammable gas suitable for this purpose.
Which gas is used for filling baloons used for Meteorological Observation:
Asked in RPSC RAS Prelims 1998 · Topic: Physical Properties of Materials (Density and Specific Gravity)
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