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-Determination. The political right of the majority to the exercise of power within the boundaries of a generally accepted political unit, area, or territory. The principle of self-determination is mentioned in the United Nations Charter and has often been stressed in resolutions passed by the UN General Assembly. The concept is most often used in connection with the right of colonies to independence.