What is Net Primary Productivity for Earth?
The Earth breathes. We gauge Earth net primary productivity by how much carbon dioxide plants absorb from the atmosphere minus how much it respires.
The Earth breathes. We gauge Earth net primary productivity by how much carbon dioxide plants absorb from the atmosphere minus how much it respires.
The main idea of photosynthesis is it takes carbon dioxide from the air. Then, it uses carbon with water to convert it into a chemical form like glucose
For the most part, trees growth is from carbon dioxide and rain water. So most of the dry mass of trees is made from the contents of the air and water.
Carbon is essential for living things and making cars move. It takes up various forms through photosynthesis, decomposition, respiration and combustion.
Nitrogen transforms into several different forms in the 4 steps of the nitrogen cycle – nitrogen fixing, decomposition, nitrification & denitrification.