The Emergence of a “Know” Profile. BlinkInfo for Websites. From Wikipedia, the free encyclopedia The Sun (Latin: Sol) is the star at the center of the Solar System.
The Earth and other matter (including other planets, asteroids, meteoroids, comets and dust) orbit the Sun, which by itself accounts for about 99.8% of the solar system's mass. Energy from the Sun, in the form of sunlight, supports almost all life on Earth via photosynthesis, and drives the Earth's climate and weather. The Sun is composed of hydrogen (about 74% of its mass, or 92% of its volume), helium (about 25% of mass, 7% of volume), and trace quantities of other elements.
The Sun has a spectral class of G2V. Dikw. Index of guides : Teaching with the LMS : Learning Management Sy. KnowledgeBasedRelationships2E_Ch1.pdf (application/pdf Object) The World Knowledge Dialogue - The World Knowledge Dialogue.