ESS
Grade-9
Easy
Question
___________is the central part of Sun.
- Radiation zone
- Sunspot
- Photosphere
- Core
Hint:
It is the hottest part of the sun and also of the solar system.
The correct answer is: Core
- The core is the central part of the Sun.
- The photosphere is the visible surface of the Sun.
- The core is the hottest region, where the nuclear fusion reactions that power the Sun occur.
- So, the correct option is d.
- Sunspots are phenomena on the Sun's photosphere that appear as temporary dark spots.
- A radiation zone, or radiative region is a layer of a sun's interior.
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