Accretion is defined as: matter that makes up galaxies. gravity that pushes matter in a circular manner into an outer source. gravity that pulls matter in a spiraling matter. none of the above

developed and developing countriescountries are divided into two major categories by the united nations, which are developed countries and developing countries. the classification of countries is based on the economic status such as gdp, gnp, per capita income, industrialization, the standard of living, etc. developed countries refers to the soverign state, whose economy has highly progressed and possesses great technological infrastructure, as compared to other nations.