Final answer:
Urban sprawl refers to the extension of cities into surrounding areas, while heat island describes the phenomenon of higher temperatures in urban areas. The two phenomena have different effects on the environment.
Step-by-step explanation:
Urban sprawl and heat island are two distinct phenomena that have different effects on the environment and urban areas. Urban sprawl refers to the expansion of cities into surrounding areas, resulting in the development of suburbs and the depletion of green spaces. Heat island, on the other hand, describes the phenomenon where urban areas have significantly higher temperatures compared to their surrounding rural areas. This is primarily caused by the absorption and retention of heat by buildings, pavement, and other urban infrastructure. Therefore, the correct answer is option c) Heat island increases temperature, urban sprawl increases green spaces.