Question

Write a brief note on the Sun’s major features.

Answer 1

Hint: The Sun is a star in the universe located at the centre of the Solar System. It is a nearly perfect sphere made of hot plasma, heated to a very high temperature by nuclear fusion reactions at its innermost layer.

Complete answer: The Sun is mostly made of hydrogen with smaller proportions of helium in the form of plasma. The Sun’s central core is plasma with a temperature of around 27 million℃. At such a high temperature, hydrogen combines to form helium by nuclear fusion, which is a process that releases vast amounts of energy. This energy then moves from the innermost layer of the Sun, that is, the core towards the outer layers. The radiative zone, just outside the core, has a temperature of 7 million℃. The energy which is produced at the core travels very slowly through the radiative zone. In the convective zone, the outermost layer of the sun, hot material from near the radiative zone rises, cools at the Sun’s surface. Solar flares and sunspots are created in this layer.
There are different types of interruptions that occur in the Sun’s magnetic energy. If a loop of the sun’s magnetic field snaps and breaks, it creates solar flares. Sunspots are the cooler, darker areas on the Sun’s surface. These sunspots break through the magnetic field and disrupt the smooth transfer of heat from lower layers of the Sun. If plasma on the Sun’s magnetic field flows along a loop of magnetic field from a sunspot to another sunspot, a solar prominence is created which is a highly visible feature. The mass of the Sun is 99.8% of the mass of the solar system.

Note: Sun forms the main source of energy for every living organism on earth. The heat and energy given out by the sun is of immense importance to every living creature. It is one of the main components of the food processed by the plants.