#1. A) The greatest free trade area exists among member nations of the European Union (EU), which is the oldest and largest free trade area. The EU can trace its roots to 1957 with the creation of the European Economic Community (or Common Market).
LINK / CITE ADD TO WORD LIST. adjective. The definition of primordial is something that existed at the beginning of time, or is something that is native, fundamental or at the earliest stages of development.Rock formations that have existed since the beginning of the earth are an example of something that would be described as primordial.adjective. 1  Being or happening first in sequence of time; original. 2  Primary or fundamental: play a primordial role. 3  Biology Belonging to or characteristic of the earliest stage of development of an organism or a part: primordial cells.he definition of primordial is something that existed at the beginning of time, or is something that is native, fundamental or at the earliest stages of development.
[edit on Wikidata] Pericardial effusion (fluid around the heart) is an abnormal accumulation of fluid in the pericardial cavity. Because of the limited amount of space in the pericardial cavity, fluid accumulation leads to an increased intrapericardial pressure which can negatively affect heart function. A pericardial effusion with enough pressure to adversely affect heart function is called cardiac tamponade. Pericardial effusion usually results from a disturbed equilibrium between the production and re-absorption of pericardial fluid, or from a structural abnormality that allows fluid to enter the pericardial cavity.