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.
Variable: Self efficacy. Definition. Self-efficacy is the extent to which people believe they are capable of performing specific behaviors in order to attain certain goals. The concept of self-efficacy is the focal point of Bandura's (1997, 2001) Social Cognitive Theory.