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Geography

Star formation, formation of planets, and our solar system

In this Class 11 Geography topic from “The Origin and Evolution of the Earth,” students explore how stars form from vast clouds of gas and dust and how planets emerge from the material surrounding a young star. They examine the formation and organisation of the solar system, including the Sun, planets, satellites, asteroids and comets, while connecting these processes with Earth’s place, structure and early development within the wider universe.

Medium · Level 6 · 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. Colour
  2. Name
  3. Whether the body reached Earth's surface or not
  4. Whether it is the Moon
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  1. They are made from modern cities
  2. They are present clouds made inside the Sun
  3. They are Earth's crops
  4. They provide information about early solar system materials
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  1. When Earth was sufficiently hot and partly molten
  2. When Earth became fully ice
  3. When the Sun became Earth's satellite
  4. When all oceans dried up
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  1. Light materials gathered in the core
  2. Heavy materials sank inward during differentiation
  3. The core is made only of gas
  4. The core is made from the Moon
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  1. It formed the asteroid belt
  2. It cooled the Sun
  3. Internal gases came out and helped form the atmosphere
  4. It made Jupiter smaller
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  1. Water came only from modern rivers
  2. Water fell only from the Sun
  3. Water formed only by human activity
  4. Water may be linked with both outgassing and water rich outer bodies
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  1. From debris produced by impact of a large body with Earth
  2. From water from the Sun's core
  3. From Jupiter's gas
  4. Directly from Milky Way dust
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  1. It makes Earth the Sun
  2. It helps stabilize Earth's axis
  3. It stops Earth's orbit
  4. It ends all seasons
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  1. Color
  2. Name of surface
  3. Ability to clear the orbit
  4. Only distance from Earth
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  1. Main star
  2. Natural satellite
  3. Galaxy
  4. Dwarf planet
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  1. Dense carbon dioxide atmosphere creates a strong greenhouse effect
  2. It is farthest from the Sun
  3. It has no mass
  4. It is outside the Milky Way
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  1. Largest size and rings
  2. Suitable distance from the Sun liquid water and suitable atmosphere
  3. Completely gaseous composition
  4. Closest position to the Sun
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  1. Its color is yellow
  2. It is visible from Earth
  3. It has most of the mass and its gravity dominates
  4. No body is around it
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  1. Most planets revolving nearly in one plane and same direction
  2. All planets having the same size
  3. All planets giving their own light
  4. All planets revolving around Earth
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  1. Color of the Moon
  2. Temperature gradient and condensation sequence
  3. Earth's politics
  4. Only ocean tides
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  1. They make Earth the Sun
  2. They end Earth's orbit
  3. They may contribute to supply of water and volatile materials
  4. They make only modern clouds
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  1. Only humans lived in the inner region
  2. There was no material in the outer region
  3. All planets formed the same way
  4. Temperature difference changed material availability and gas capture
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  1. Collisions compression and radioactive decay
  2. Forests rain and rivers
  3. Moonlight and clouds
  4. Modern cities and industries
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  1. All materials were thrown out
  2. Heavy materials moved inward and lighter materials stayed above
  3. The Sun cut all layers
  4. The Moon divided Earth into two parts
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  1. Because planets are larger than the Sun
  2. Because Earth was already formed
  3. Because both formed from material of the solar nebula
  4. Because the Moon made the Sun
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  1. They are distant and gaseous
  2. They formed from comet tails
  3. They are in the Oort Cloud
  4. They have solid rocky surfaces and higher density
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  1. Jupiter Saturn gas giants and Uranus Neptune ice giants
  2. Mercury Venus gas giants and Earth Mars ice giants
  3. Earth Moon gas giants and Sun ice giant
  4. All planets only gas giants
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  1. Planet then galaxy then solar system
  2. Galaxy then solar system then planet
  3. Solar system then galaxy then planet
  4. Moon then Sun then galaxy
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  1. Planets always remain still
  2. Planets become stars
  3. Planets remain in orbits
  4. Planets move out of the galaxy
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  1. When all particles instantly become the Sun
  2. When an external gravitational disturbance stops bodies from merging
  3. When oceans form first
  4. When Earth's atmosphere disappears

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