Explore this cemetery for graves, information and tombstones for names in Sterling Cemetery in Sterling, Kansas, a Find A Grave Cemetery.
It is estimated that about 50% of the world's oxygen is produced via phytoplankton photosynthesis. The rest is produced via photosynthesis on land by plants. Furthermore, phytoplankton photosynthesis has controlled the atmospheric CO 2 / O 2 balance since the early Precambrian Eon.
Nitrogen makes up approximately 78 percent of the Earth's atmosphere and is an important component of genes and proteins in living organisms. As an element, nitrogen makes up 4 percent of the typical animal and 1 percent of the typical plant.