The type of earth surface is
Cool ocean
Both anabolic and catabolic reactions took place in the seed and tree when it was young and growing, and both continue now even though the tree reached a stable mass.
The answer to this problem is salinity
Encompassing over 70% of the Earth's surface, the ocean plays a vital dominant role in oxygen production, weather patterns, climate and the global carbon cycle. It is estimated that 93% of the earth's carbon dioxide is stored in algae, vegetation, and coral under the sea and cycled through the oceans.