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| Description: Solar features Flares Explosive events that normally last an hour or so Sudden brightening above a sunspot cluster Release enormous quantities of energy Eject particles that reach Earth in about one day and interact with the atmosphere to cause the auroras (the Northern and Southern Lights) Solar interior Cannot be observed directly Nuclear fusion occurs here Source of the Sun’s energy Occurs in the deep interior Proton-proton reaction Nuclear reaction that produces the Sun’s energy Four hydrogen nuclei are converted into a helium nuclei Matter is converted to energy 600 million tons of hydrogen is consumed each second Sun has enough fuel to last another five billion years Picture Stats: Views: 277 Filesize: 2.62MB Height: 922 Width: 1377 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39782 |