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Atmosphere of the earth is made up of different spheres. in which part of atmosphere commercial air craft usually fly:

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Atmosphere of the earth is made up of different spheres. in which part of atmosphere commercial air craft usually fly: Answer: Stratosphere

Commercial aircraft usually fly in the lower stratosphere, which lies above the troposphere (around 10–15 km above Earth’s surface).

Question context

This question is part of 📚 General Knowledge within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.