because these 4 elements that are listed are the most common elements on planet earth. most percentage of the eart is made of there 4 elements but not all some elments like iron are also there but a extremly small percentage
These elements are the primary constituents of living organisms and form the basis from which life exists on Earth.
These are the elements that primarily form living things. CHON, especially, are the elements of life.
These elements are nitrogen, oxygen and argon.
Carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorous (P) are the main elements. Other important "players" are sulfur (S), sodium (Na), calcium (Ca), and magnesium (Mg).
These elements are oxygen and nitrogen.
Assuming you meant the acronym CHNOPS. It stands for carbon, hydrogen, nitrogen, oxygen, phosphorus & sulphur - the six most important chemical elements that make up most biological elements found on Earth.
Examples: oxygen, nitrogen, hydrogen (gases), carbon, phosphorus (nonmetals).
The most important elements in the Earth's atmosphere are N (nitrogen) and O (oxygen).
hydrogen becuase it gives us all water by combining with oxygen (h20) nitrogen cause.............
These elements are nitrogen, oxygen and argon.
Nitrogen, Oxygen and Argon
Carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorous (P) are the main elements. Other important "players" are sulfur (S), sodium (Na), calcium (Ca), and magnesium (Mg).
Oxygen & Nitrogen.
Nitrogen 78 % Silica in soil
These elements are oxygen and nitrogen.
Carbon, oxygen, nitrogen, iron and silicon.
hydrogen, oxyegen, nitrogen, carbohydrates
The 6 essentials elements of life to exist are: carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. Without them, life can't exist on Earth!
Assuming you meant the acronym CHNOPS. It stands for carbon, hydrogen, nitrogen, oxygen, phosphorus & sulphur - the six most important chemical elements that make up most biological elements found on Earth.