The flat like structures formed due to condensation of gaseous clouds after big-bang where called as :

Options

A. Planets
B. Sun
C. Nebula
D. Galaxy

Answer

**Step-by-Step Solution:**

1. **Understanding the Context**: The question refers to structures formed after the Big Bang, specifically those that are flat and result from the condensation of gaseous clouds.

2. **Identifying the Correct Term**: The term that describes these flat-like structures is "nebula." A nebula is defined as an enormous cloud of dust and gases in space.

3. **Characteristics of Nebulae**: Nebulae occupy the space between stars and are often referred to as the "nursery" of new stars because they are the regions where new stars are formed from the gas and dust.

4. **Etymology of the Term**: The word "nebula" originates from the Latin word "nebula," which means mist, vapor, or smog, indicating its cloudy appearance.

5. **Distinguishing from Other Options**: It is important to differentiate a nebula from other astronomical structures:
- A galaxy is much larger than a nebula and consists of billions of stars, along with other components like solar systems and black holes.
- A star, such as the sun, is a singular luminous object within a galaxy.
- A planet is a celestial body that orbits a star and is part of a solar system.

6. **Conclusion**: Based on the above points, the correct answer to the question is "nebula."

**Final Answer**: The flat-like structures formed due to the condensation of gaseous clouds after the Big Bang are called "nebulae."

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