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Geography

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In Class 11 Geography, this topic introduces how scientists investigate the Earth’s interior, which cannot be observed directly. Students distinguish direct evidence from mines, deep drilling and volcanic materials, and indirect evidence from seismic waves, meteorites, gravity, magnetic fields, and variations in temperature and pressure. The topic explains how these sources help infer the Earth’s internal structure and composition within the chapter Interior of the Earth.

Expert · Level 6 · 1 questions

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  1. It is definitely a direct sample of the core
  2. A thermal clue exists but other evidence is needed for density related conclusion
  3. Gravity anomaly always measures rainfall
  4. Geothermal gradient has no relation with internal heat

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