The four major nutrients are carbohydrates, proteins and fats. Plus I would include minerals. All are necessary for good health.
amino acidsamino acids
As discussed, the four most important influences of Western art history are:
Nitrogen and Phosphorus
The most important are oxygen and carbon dioxide.
There really isn't a MOST important part ... if you don't get the proper mix of all required nutrients you die. (Fastest if you run out of air, second fastest if you run out of water.)
Protein and fiber are the most important. There are also amino acids and such.
Nutrients important to human metabolism include the essential vitamins and minerals as well as a source of energy that is found in calories from sugar and fats.
Four most important inventions: Paper, gunpowder, printing, compass
The topsoil layer is the most important for growing crops as it is rich in organic matter, nutrients, and microorganisms that support plant growth. This layer provides the essential nutrients and water needed for plants to thrive and produce a good yield.
Frankly, all the soil nutrients are important. Loking at where photosynthesis takes place (the leaves), the rootting and the good look of crops, i will say they are Nitrogen, Phosphorus and Potasium.
i think it menas something importante
The blood's most important job is the movement of wastes, oxygen, and nutrients to and from body cells. This movement allows the cells to maintain cellular homeostasis.