The main parts to the Sun's interior is:

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The core

The radiative zone

The convective zone

None of these

answer is A.

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Detailed Solution

Concept- The existence of life on earth is due to the sun. The sun's structure is composed of a variety of layers and gases. Different nuclear processes have been occurring in the sun since a very early time. One of the most significant reactions is the fission process, which is also occurring.
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All the elements are in a gaseous state because the sun is such a hot, massive burning ball of gases. Gravity brings the gases together, which raises the core's temperature and pressure. Its structure is divided into two primary sections: the inner and the exterior.
The solar core, radiation zone, and convection zones, where the thermonuclear process occurs, make up the sun's interior structure. It is made up of 73 hydrogen atoms and around 23 helium atoms, with extremely trace amounts of oxygen, carbon, neon, and iron.
The sun's nuclear reaction is

If this reaction occurs twice and the subsequent phase begins,

The solar atmosphere, which includes the photosphere, chromospheres, transition area, and corona, makes up the outer region. The chromospheres are observable because of the photosphere, which is visible and fluctuates in temperature from 5770 K to 5780 K. This area is where the sunspot is visible. The chromospheres have a temperature of 20,000 K, while the transition area has a temperature of 20,000 K to 1,000,000 K. The next is the corona, which is visible during solar eclipses and has a relatively low density.
Hence, option 1 is correct.

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