It is important to maintain septic systems in order to
a. prevent treated sewage from contaminating groundwater
b. process human waste into fertilizer
c. prevent untreated sewage from contaminating groundwater
d. none of the above

the culture of asia encompasses the collective and diverse customs and traditions of art, architecture, music, literature, lifestyle, philosophy, politics and religion that have been practiced and maintained by the numerous ethnic groups of the continent of asia since prehistory. identification of a specific culture of asia or universal elements among the colossal diversity that has emanated from multiple cultural spheres and three of the four ancient river valley civilizations is complicated. however, the continent is commonly divided into six geographic sub-regions, that are characterized by perceivable commonalities, like religion, language and relative ethnic homogeneity. these regions are central asia, east asia, north asia, south asia, southeast asia and west asia

answer; i believe that the correct answer is (tabula rasa);