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Subjects

Geography

Early and modern theories

In Class 11 Geography, this topic explores how explanations for the origin and evolution of the Earth developed from early philosophical ideas to modern scientific theories. Students compare major hypotheses, including nebular explanations, and examine the astronomical, geological, and physical evidence used to understand the formation of the solar system and Earth. The topic also shows how observations, discoveries, and improved scientific models continually refine our understanding of the planet.

Easy · Level 6 · 24 questions

TOPIC PRACTICE

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24 questions

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  1. Both are only river theories
  2. Early theories were more hypothetical while modern theories are evidence based
  3. Modern theories are only about soil
  4. Early theories are only about population
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  1. Tidal Hypothesis
  2. Big Bang Theory
  3. Steady State Theory
  4. Modern Accretion View
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  1. It formed rivers
  2. It arranged matter into a flat disk
  3. It formed forests
  4. It increased population
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  1. Matter completely disappeared
  2. Matter became soil
  3. Matter condensed
  4. Matter became rivers
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  1. By growth of vegetation
  2. By stopping rainfall
  3. By freezing oceans
  4. By repeated joining of small bodies
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  1. The universe began expanding from an extremely dense state
  2. Planets formed from sea waves
  3. The Sun came out of Earth
  4. Earth was always as it is today
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  1. Planets formed from mountains
  2. The Sun and planets formed from a gas dust cloud
  3. The Sun formed from rivers
  4. Stars formed from oceans
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  1. Soil of planets
  2. Tides of the Sun
  3. Expansion of the universe
  4. Small planetesimals
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  1. Big Bang Theory
  2. Planetesimal Hypothesis
  3. Tidal Hypothesis
  4. Nebular Hypothesis
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  1. Planets formed by accretion of small bodies
  2. All planets formed from rivers
  3. The Sun formed from oceans
  4. Earth was always as it is today
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  1. The universe is dynamic
  2. The universe is only Earth
  3. The universe never changes
  4. The universe is made only of water
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  1. Extremely cold condition
  2. Very hot condition
  3. Stable watery condition
  4. Fully forested condition
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  1. Cyclones
  2. Rivers
  3. Planetesimals
  4. Continents
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  1. Only rivers
  2. Only clouds
  3. Only soil
  4. Planets
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  1. Big Bang Theory
  2. Tidal Hypothesis
  3. Planetesimal Hypothesis
  4. Nebular Hypothesis
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  1. River erosion
  2. Cloud of gas and dust
  3. Human migration
  4. Soil erosion
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  1. Expansion of universe
  2. Pull of a passing star
  3. Planet formation from small bodies
  4. Cooling of galaxy
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  1. Both are based only on rivers
  2. Both are based only on soil
  3. Both are modern satellite theories
  4. One has a passing star and the other has a gaseous nebula
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  1. It is expanding
  2. It is completely static
  3. It is limited only to Earth
  4. It is filled with water
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  1. It formed oceans
  2. It arranged the material for planet formation
  3. It formed forests
  4. It stopped rivers
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  1. Steady State and passing star
  2. Tidal Hypothesis and dense universe expansion
  3. Big Bang and expansion from dense state
  4. Nebular and electoral boundary
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  1. Kant and Nebular Hypothesis
  2. Hubble and universe expansion
  3. Chamberlain and Planetesimal Hypothesis
  4. Jeffreys and Big Bang Theory
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  1. Expansion
  2. Soil formation
  3. River deposition
  4. Forest expansion
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  1. To understand development of ideas about origin of Earth and universe
  2. To memorize only river names
  3. To identify only crops
  4. To study only political boundaries

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