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Geography

Interior structure of the earth

In Class 11 Geography, this topic from the chapter “Interior of the Earth” explains how scientists understand the planet’s hidden layers. Students study the crust, mantle, and core, along with the differences between the inner and outer core. They explore how seismic waves, gravity, density, temperature, and pressure provide evidence about Earth’s composition and physical state. The topic also introduces major discontinuities that mark boundaries between layers and helps connect Earth’s internal structure with processes such as volcanism, earthquakes, and plate movement.

Easy · Level 5 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Crust
  2. Outer core
  3. Mantle
  4. Inner core
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  1. Seismic waves
  2. Sea waves
  3. Seasonal winds
  4. River currents
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  1. Mantle
  2. Crust
  3. Outer core
  4. Inner core
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  1. Crust
  2. Mantle
  3. Inner core
  4. Oceanic sediment
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  1. Lehmann discontinuity
  2. Moho discontinuity
  3. Gutenberg discontinuity
  4. Conrad discontinuity
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  1. Moho discontinuity
  2. Conrad discontinuity
  3. Gutenberg discontinuity
  4. Lehmann discontinuity
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  1. Lehmann discontinuity
  2. Moho discontinuity
  3. Conrad discontinuity
  4. Lithosphere
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  1. Silica and alumina
  2. Iron and nickel
  3. Magnesium and water
  4. Carbon and ice
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  1. SIAL
  2. SIMA
  3. NIFE
  4. Sediment
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  1. Silica and alumina
  2. Iron and nickel
  3. Calcium and sodium
  4. Oxygen and hydrogen
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  1. Asthenosphere
  2. Lithosphere
  3. Outer core
  4. Biosphere
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  1. Asthenosphere
  2. Inner core
  3. Continental crust
  4. Outer core
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  1. Thicker
  2. Always equal
  3. Much thinner
  4. Completely absent
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  1. Lower
  2. Higher
  3. Zero
  4. Same
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  1. Decreases
  2. Increases
  3. Becomes zero
  4. Does not change
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  1. Decreases
  2. Increases
  3. Remains zero
  4. Increases only at surface
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  1. Decreases
  2. Increases
  3. Remains exactly same
  4. First zero then high
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  1. Only solids
  2. Solids liquids and gases
  3. Only gases
  4. Only vacuum
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  1. Solid
  2. Liquid
  3. Hard rock
  4. Solid part of mantle
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  1. S waves do not pass through it
  2. Rivers bend
  3. Winds change direction
  4. Sea water is salty
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  1. Mantle
  2. Atmosphere
  3. Hydrosphere
  4. Soil
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  1. 6371 kilometres
  2. 12742 kilometres
  3. 2900 kilometres
  4. 35 kilometres
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  1. 35 kilometres
  2. 2900 kilometres
  3. 5100 kilometres
  4. 6371 kilometres
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  1. 35 kilometres
  2. 700 kilometres
  3. 2900 kilometres
  4. 100 kilometres
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  1. Crust mantle core
  2. Atmosphere hydrosphere biosphere
  3. River plain plateau
  4. Cloud rain wind

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