The sun is the star at the center of our solar system. The sun has exceptionally important influences on our planet. It drives weather, ocean currents, seasons and climate. It makes plant life possible through photosynthesis. Without the sun's heat and light, life on Earth is impossible to even imagine. The Sun, like others stars, is a ball of gas. In terms of the number of atoms, it is made of 91.0% of Hydrogen and 8.9% helium. By mass, the Sun is about 70.6% hydrogen and 27.4% helium. At the core of the sun, gravitational attraction produces immense pressure and temperature, which can reach more than 27 million degree Fahrenheit (15 million degrees Celsius). Hydrogen atoms get compressed and fuse together, creating helium. This process is called nuclear fusion. Out of the many objects that directly orbit the sun, eight planets are the largest objects. The remaining are the smaller objects, the dwarf planets and small solar system bodies. The presentation gives better understanding on the topic.

Ansif S

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