As the members of a given generation age, their instinct of social conservation becomes stronger, which inevitably and necessarily brings them into conflict with the normal attribute of youthâinnovation. Other important theorists of the 19th century were John Stuart Mill and Wilhelm Dilthey.
Plants require more than just water and sunlight to grow. They also require many nutrients found in the soil. One of the most important nutrients required for plant growth is nitrogen. Nitrogen is used to build plant proteins and nucleic acids, including DNA.
Functions of nitrogen in plants. 1  Nitrogen is an essential element of all amino acids. 2  Nitrogen is also a component of nucleic acids, which form the DNA of all living things and holds the genetic code. 3  Nitrogen is a component of chlorophyll, which is the site of carbohydrate formation (photosynthesis).