Unformatted text preview: 25. A sun spot is a ____________ that extends from the sun’s surface deep into the interior. 26. Sun spots are associated with the sun’s ______ of huge _________ that upon reaching Earth’s upper atmosphere interact ________. Other: 27. What three things deals with variations in Earth’s orbit? Volcanic Activity: 28. Explosive eruptions emit huge quantities of _____ & ___________ into the atmosphere. 29. The greatest eruptions are sufficiently powerful to inject material high into the stratosphere, where_________________________. 30. Three major eruptions have provided considerable insight regarding the impact of volcanoes on _________________....
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- Fall '11
- Solar cycle, ice record variations