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.
Self-immolation is an act of killing oneself as a sacrifice. While usage since the 1960s has typically referred only to setting oneself on fire, the term historically refers to a much wider range of suicidal options, such as leaping off a cliff, starvation, or seppuku (also called hara-kiri; ritual disemboweling).