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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 3 · 25 questions

TOPIC PRACTICE

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Up to 25 questions from this page. Select your focus, then start.

25 questions

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  1. From surface toward the center
  2. From center toward the surface
  3. From north toward south
  4. From ocean toward atmosphere
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  1. Crust
  2. Outer core
  3. Inner core
  4. Lower mantle
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  1. Because all have same color
  2. Because of differences in density and composition
  3. Because all layers have same temperature
  4. Only because of rainfall
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  1. Beneath high mountains
  2. In the middle of continents
  3. Beneath oceans
  4. In the inner core
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  1. Mantle
  2. Crust
  3. Outer core
  4. Inner core
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  1. Granitic and lighter
  2. Basaltic and denser
  3. Completely liquid
  4. Full of iron nickel
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  1. Granitic and less dense
  2. Basaltic and denser
  3. Sedimentary and very light
  4. Made only of silica
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  1. Below core and above crust
  2. Below crust and above core
  3. Below atmosphere and above ocean
  4. Inside inner core
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  1. Lehmann discontinuity
  2. Gutenberg discontinuity
  3. Mohorovicic discontinuity
  4. Conrad core
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  1. Mohorovicic discontinuity
  2. Gutenberg discontinuity
  3. Lehmann discontinuity
  4. Himalayan discontinuity
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  1. Moho discontinuity
  2. Gutenberg discontinuity
  3. Lehmann discontinuity
  4. Sial boundary
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  1. Lithosphere
  2. Asthenosphere
  3. Outer core
  4. Inner core
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  1. Inner core
  2. Asthenosphere
  3. Outer core
  4. Only sial part of crust
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  1. Crust
  2. Upper mantle
  3. Outer core
  4. Inner core
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  1. Silica and aluminium
  2. Silica and magnesium
  3. Iron and nickel
  4. Oxygen and carbon
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  1. Crust
  2. Mantle
  3. Core
  4. Lithosphere
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  1. Silica and aluminium
  2. Iron and nickel
  3. Magnesium and silica
  4. Hydrogen and helium
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  1. Silica and aluminium
  2. Silica and magnesium
  3. Iron and gold
  4. Carbon and nitrogen
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  1. They can travel through both solids and liquids
  2. They travel only through liquids
  3. They travel through no medium
  4. They travel only in atmosphere
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  1. They do not pass through solids
  2. They do not pass through liquids
  3. They travel only in light
  4. They travel only in air
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  1. S waves not passing through it
  2. Number of trees
  3. Direction of rivers
  4. Wind speed
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  1. Due to low pressure
  2. Due to very high pressure
  3. Due to more water
  4. Due to sunlight
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  1. It decreases with depth
  2. It increases with depth
  3. It remains zero in every layer
  4. It increases only in crust
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  1. It increases with depth
  2. It decreases with depth
  3. It remains same everywhere
  4. It is found only at surface
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  1. Direct source
  2. Indirect source
  3. Seasonal source
  4. Astronomical source

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