Its makes sirius the brightest star in the night sky.
a. apparent magnitude
c. color
b. parallax
d. absolute magnitude

Th correct answer is letter B. Its parallax makes Sirius the brightest star in the night sky. This refers to the displacement of the apparent position of an object that is being viewed. The angle or semi-angle of inclination between two lines of sight makes it possible for us to see this bright star at night.

Urban growth invariably feeds increased commercialization and industrialization. it requires continually expanding land areas. when urbanization rates are high, and countries do not have the institutional and managerial capacities or economic wherewithal to manage such rapid growths, they exert intense pressure on the types and nature of the resulting settlements. they contribute to the development of overcrowded slums and shanty towns without adequate essential services and necessary infrastructure.-by asit k. biswas and cecilia tortajada