Hourly Forecast Detailed. 1  0am:The Santee, SC forecast for Apr 11 is 63 degrees and Clear. There is 74 percentage chance of rain and 4 mph winds from the South-Southeast. 2  3am:The Santee, SC forecast for Apr 11 is 55 degrees and Clear. There is 79 percentage chance of rain and 4 mph winds from the South.
Most Important Organism? Marine plants produce between 70 and 80 percent of the oxygen in the atmosphere.
As of June 2014, it is unknown which particular species of tree produces the most oxygen. A variety of factors contribute to the amount of oxygen a tree can produce, such as the age, health and surrounding area of a tree. Continue Reading. It is known that mature, leafy trees, such as redwoods, aspens and oaks, are the best producers of oxygen.