I belive it it O because <span>An O horizon has at least 20% </span>organic matter<span> by mass. Two main scenarios result in the formation of an O horizon: saturated, </span>anaerobic<span> conditions (wetlands) or high production of leaf litter in forested areas. Anaerobic conditions slow the </span>decomposition<span> process and allow organic material to accumulate. An O horizon can have various stages of decomposed organic matter: highly decomposed, sapric; moderately decomposed, hemic; and minimally decomposed, fibric. In a fibric O layer, plant matter is recognizable (e.g., it is possible to identify a leaf). Sapric material is broken down into much finer matter and is unrecognizable as a plant part. Hemic is in between sapric and fibric, with some barely recognizable plant material present. It is possible to have multiple O horizons stacked upon one another exhibiting different decomposition stages. Because of their organic content, these horizons are typically black or dark brown in color. The dominant processes of the O horizon are </span>additions<span> of organic matter, and </span><span>transformations </span><span>from fibric to sapric
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The ocean currents are warm as only warm currents influence the waters to be warm.The atmosphere gets heated
I mean all human are organisms.. This is the triangle where it all starts.. Hope this helps! Good luck!
Organism
Organ system
Organ
Tissues
Cells
Organelles
Macro moecules
Molecule
Elements
Atoms
Sub atomic particles
Can you insert a picture of the map?
Answer:
B
7 continents are, Africa, Antarctica, Asia, Australia, Europe, North America, and South America.
4 oceans are the Atlantic, Pacific, Indian, and Arctic.
