Americium and Europium are the elements named for large regions which include several countries.
Acculteration
These are the artificial radioactive chemical elements.
The periodic table of elements
A star
oxegen and nirogen
A dominant impression
The three elements of an economic theory include the dominant/dependent states. The other two have to do with external forces and relationship between dominant and dependent states.
oil
At the time of the dinosaurs, most large animals were reptiles and the dominant trees were conifers. Today, most large reptiles have been long extinct, and most large animals are mammals. The dominant plants are now flowering plants.
Americium and Europium are the elements named for large regions which include several countries.
Motif: A recurrent thematic element in an artistic or literary work. A dominant theme or central idea.
Acculteration
a Biome
Chlorine reacts violently with a large number of elements.
Basically the metals. Note that a large number of the elements are metals.
Precambrian would have been dominant because there were so many of them. They lived in very large groups in that were known as stromatolites which were reef like in many ways.