Which is the thinnest earth layer?

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Which is the thinnest earth layer? Answer: Crust

The thinnest layer of the Earth is the crust, which is the thin, rocky outer shell on which we live. Its thickness varies, being much thinner under the oceans (about 3-6 miles or 5-10 km) and thicker under continents (up to 30-50 miles or 50-60 km).

Question context

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