Which of the following definitions best fits the term underclass? A.
a city's level of pollutants and emissions
B.
a city's poorest and most disadvantaged citizens
C.
a city's urban heat island structures
D.
a city's economic leadership

Which evidence is most likely used to indicate the beginning of solar system formation? a. materials combined to form a mass. b. materials were pulled together by gravity. c. water condensed and collected to form oceans. d. different species of microorganisms lived on earth.

The organ that has two atria and one ventricle is the

Which of the following statements best describes east asia? a. east asia is known to be the crafle of civilizationb. east asia is one of the world's most populates placesc. east asia is one of the worlds riches placesd. east asia is located near the equator me asap huhu