Air and soil.
Carbon, Nitrogen, Phosphorus, Hydrogen, and Oxygen
A pure substance contain only one type of molecule. A mixture contain two or more substances.
Yes, because it is extremely cold. Cryogenics is the science of very, very cold substances, and dry ice and liquid nitrogen are one of the main two substances in that genre.
No, it contains two: hydrogen and nitrogen, It does however contain four different atoms: one of nitrogen and three of hydrogen.
A mixture contain two or more substances (compounds).
Proteins are a class of such substances.
Carbon, Nitrogen, Phosphorus, Hydrogen, and Oxygen
A mixture contain two or more substances (compounds).
Air contain nitrogen, oxygen, other minor noble gases, ozone, carbon dioxide water vapors, fumes, powders.
1 nitrogen 3 Hydrogen
Fertilizer may contain: potassium, nitrogen, phosphorous, sulfur, cacium and some microelements.
Oxygen and Nitrogen are two examples
Nitrate and ammoniak
Proteins and nucleic acids
Nitrogen is a gaseous element, that is, what is in nitrogen is nitrogen.
Mixtures contain two or more compounds.
A pure substance contain only one type of molecule. A mixture contain two or more substances.