help me understand 80% of it

1. The sun is a star located at the center of our solar system.
2. It is approximately 4.6 billion years old and is in the main sequence phase of its life.
3. The sun generates energy through nuclear fusion, primarily fusing hydrogen atoms into helium.
4. Its core temperature exceeds 15 million degrees Celsius and the surface temperature is around 5,500 degrees Celsius.
5. The sun’s mass accounts for about 99.86% of the total mass in our solar system.
6. The sun’s gravitational pull keeps the planets and other celestial bodies in orbit around it.
7. It emits various forms of electromagnetic radiation, including light, heat, and ultraviolet radiation.
8. The sun’s energy is essential for supporting life on Earth, as it provides warmth and enables photosynthesis.
9. Solar flares and coronal mass ejections are powerful eruptions of energy from the sun’s surface.
10. The sun has a distinct structure, including the core, radiative zone, convective zone, photosphere, chromosphere, and corona.
11. Sunspots are dark regions on the sun’s surface caused by intense magnetic activity.
12. The sun’s magnetic field influences the behavior of charged particles in the solar system.
13. Solar wind is a stream of charged particles that extends throughout the solar system.
14. The sun’s activity follows an 11-year cycle, characterized by changes in sunspot numbers and solar flares.
15. The sun’s energy output can affect Earth’s climate and weather patterns.
16. Sunlight takes approximately 8 minutes and 20 seconds to reach Earth.
17. The sun will eventually exhaust its nuclear fuel and undergo a series of changes, including expanding into a red giant and shedding its outer layers.
18. The sun’s ultimate fate is to become a white dwarf, a dense remnant core.
19. Solar telescopes and space-based observatories help scientists study the sun’s behavior and phenomena.
20. The study of the sun, known as heliophysics, involves various scientific disciplines, including physics, astronomy, and astrophysics.