The actual noun form is 'observance' and not observable. Observance means acts performed for religious or ceremonial reasons.
We are at the centre of the observable universe, keyword being 'observable'.
The observable traits are part of your DNA, your genetics.
Behaviorism focuses on observable behavior.
I think you mean 'uniformitarianism'. According to the principle of uniformitarianism, the observable features of the world were produced by processes that are still observable today. For example, mountains were formed, not by a miracle or a catastrophe, but by the ordinary (very slow) geological processes of plate tectonics, which we can observe in the present.
Any natural occurrence that is observable or creates an effect which is observable
Macrostructure-- Noun: The structure (as of metal, a body part, or the soil) revealed by an observable analysis with a small amount of or no magnification.
is any observable occurrence.
The noun 'progress' is an abstract noun as a word for advancement toward a goal or to a further stage; the growth or development of an individual or the continuous improvement of a society.The noun 'progress' is a concrete noun as an observable movement of a person or thing.
Transpiration is the process by which plants "breathe" and is an action, an observable process, but is neither abstract nor concrete.
Its means; open and observable; not a secret or hidden.
Thrashing as a noun is the gerund form of to thrash, and is an action noun. Some uses of the term are abstract (e.g. victory), but almost all gerunds for actions are neither abstract (i.e. they are observable) nor concrete (they are not tangible).
Displays is a concrete plural noun referring to exhibitions or presentations (e.g. trophy displays, fireworks displays). The general term display for an observable act (e.g. display of affection) is also a nonspecific but concrete noun.
Behavior is observable.
The word "phenomena" refers to observable effects, events, or occurrences. The singular is "phenomenon".
A hypothesis is a proposed explanation or prediction based on limited evidence. It is used in scientific research to guide experiments and observations in order to test its validity.
We are at the centre of the observable universe, keyword being 'observable'.
observable ? i'd say quarks.