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.
Most will however lose some of their oldest leaves just before they produce new leaves in the spring. Some will lose part of their leaves in the fall. A tree can absorb as much as 48 pounds of carbon dioxide per year and can sequester 1 ton of carbon dioxide by the time it reaches 40 years old.Tree leaves are composed of many colored pigments -- green chlorophyll hides them during the spring and summer growing seasons.ne large tree can lift up to 100 gallons of water out of the ground and discharge it into the air in a day. One large tree can provide a day's supply of oxygen for up to four people. Each year, one person uses wood and paper products equivalent to a 100 foot tree 18 inches in diameter.