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Which country is a permanent member of the UN Security Council?
Sealed Vessel
A container designed to be completely airtight, preventing the exchange of substances with its environment.
Nitrogen
Nitrogen is a colorless, odorless, tasteless gas that makes up about 78% of the Earth's atmosphere, significantly used in fertilizer production, as a refrigerant, and as a replacement for air in tires to maintain stable pressure.
Confined Liquid
A fluid that is trapped or contained within a specific space or system, often under pressure.
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