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.
Updated February 12, 2017. Asceticism is the practice of self-denial in an attempt to draw closer to God. It may include such disciplines as fasting, celibacy, wearing simple or uncomfortable clothing, poverty, sleep deprivation, and in extreme forms, flagellation, and self-mutilation.