The study of the atmosphere and the processes that produceweather and climate is. 11. The science of is the study of the universe. Formation of Earth 12. The hypothesis suggests that the bodiesof our solar system evolved from an enormous rotating cloudcalled the solar nebula.
Definition of selfâpurification. 1  1 : purification by natural process selfâpurification of water. 2  2 : purification of oneself.
Full Definition of SELF. 1. a: the entire person of an individual b: the realization or embodiment of an abstraction. 2. 3. : the union of elements (as body, emotions, thoughts, and sensations) that constitute the individuality and identity of a person. 4.