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Subjects

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 4 · 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. Temperature difference according to distance from the Sun
  2. Human activity
  3. Earth's rainfall
  4. Moonlight
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  1. Oxygen
  2. Hydrogen
  3. Nitrogen
  4. Carbon dioxide
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  1. Galaxy
  2. Core of the Sun
  3. Planetesimals
  4. Terrestrial oceans
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  1. Meteorite
  2. Asteroid
  3. Satellite
  4. Meteor
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  1. Suitable distance liquid water and atmosphere
  2. Largest size and rings
  3. Closest position to the Sun
  4. Completely gaseous structure
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  1. Venus has no sunlight
  2. Venus's dense carbon dioxide atmosphere traps intense heat
  3. Earth revolves around Jupiter
  4. Venus is outside the Milky Way
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  1. Low mass pushed all material away
  2. Their large cores attracted more gas
  3. They started producing sunlight
  4. They took water from Earth
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  1. Many star birth regions can form from one cloud
  2. All planets end
  3. The Sun immediately becomes cold
  4. The Moon becomes a galaxy
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  1. Same density of all materials
  2. Difference in temperature and condensation properties
  3. Orbit of the Moon
  4. Earth's magnetism
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  1. They are the lightest materials
  2. They formed from sunlight
  3. They are heavy materials that sank in molten Earth
  4. They came from oceans
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  1. It made Earth the Sun
  2. It moved Earth out of the galaxy
  3. It stopped all planets
  4. Help in stabilizing Earth's axis
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  1. Terrestrial planets are rocky and ice giants have important ices like water ammonia methane
  2. Terrestrial planets are suns and ice giants are satellites
  3. Both are made only of iron
  4. Both have no orbit
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  1. Removal of gases in the inner hot region
  2. Greater collection of light gases in the outer cold region
  3. Taking rocks from Earth's surface
  4. Gas forming from moonlight
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  1. In early joining of tiny particles
  2. In the shine of main sequence stars
  3. In formation of the Milky Way
  4. In formation of Earth's oceans
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  1. When it survives and reaches Earth's surface
  2. When it starts fusion in the Sun
  3. When it becomes a galaxy
  4. When it leaves a planet's orbit
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  1. Planets would not remain bound in their orbits
  2. Planets would automatically become stars
  3. All planets would become Earth's satellites
  4. Comets would become atmospheres
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  1. Most planetary orbits are nearly in one plane and one direction
  2. All planets give their own light
  3. All planets revolve around Earth
  4. All planets are of equal size
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  1. It is a transition region of rocky leftovers
  2. It is the second center of the Sun
  3. It is Earth's atmosphere
  4. It is the boundary of the Milky Way
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  1. Volcanic outgassing and water from outer bodies
  2. Water from modern canals
  3. Sap of vegetation
  4. Water from the Sun's core
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  1. Their orbit clearing status is different
  2. Their colors are always different
  3. A dwarf planet is always a star
  4. Major planets never have gravity
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  1. A comet's orbit can often be more elongated elliptical
  2. Planets always run away from the Sun
  3. Comets never revolve around the Sun
  4. Planets always revolve around the Moon
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  1. Icy materials are more important in them
  2. They are inner rocky planets
  3. They are satellites of the Sun
  4. They are comets smaller than Earth
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  1. Growing bodies began attracting more matter
  2. Gravity completely ended
  3. Particle mass became zero
  4. The Sun became Earth's satellite
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  1. Gravitational contraction can start there and form a protostar
  2. Earth's ocean forms there
  3. All planets are destroyed there
  4. The Moon becomes the Sun there
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  1. By its huge mass and gravity
  2. By its cold surface
  3. By its Moon like orbit
  4. By its water ocean

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