MCQ Detailed View

Matter exists in several forms: solid, liquid, gas, and plasma. While solids, liquids, and gases are common on Earth, plasma is the most abundant form of matter in the universe.

Plasma is a hot, ionized gas where atoms have lost or gained electrons, resulting in free electrons and ions. This allows plasma to conduct electricity and respond to magnetic and electric fields. Most of the matter in the universe, including stars, the Sun, and interstellar space, exists as plasma due to extremely high temperatures that strip electrons from atoms.

Examples of plasma on Earth include lightning, neon signs, fluorescent lamps, and auroras. However, these are very small compared to the plasma found in the cosmos. In fact, more than 99% of visible matter in the universe is plasma.

Other forms of matter are much less common in space:

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  Solids: Found in planets, asteroids, and moons.

  
  


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  Liquids: Rare, mostly in oceans or planetary bodies.

  
  


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  Gases: Present in nebulae and planetary atmospheres, but still less than plasma.

  
  

Studying plasma is essential in astronomy, physics, and cosmology because it helps scientists understand star formation, galaxy behavior, and space phenomena. Plasma research is also key in developing fusion energy and understanding space weather that affects satellites and Earth’s communication systems.

In summary, the correct answer is A. Plasma. It dominates the universe, making up the largest portion of matter compared to solids, liquids, or gases, and is essential for understanding how the universe works.