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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.

Medium · Level 7 · 1 questions

TOPIC PRACTICE

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  1. Both form only in the sea
  2. They are chemically unrelated substances
  3. Both are always equally beneficial to health
  4. One helps protect life, while the other can contribute to air pollution

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