Why is indoor air pollution a serious health hazard in some developing countries? a. the burning of coal releases significant amounts of particulates into the air. b. people smoke more in developing countries. c. many homes rely on indoor burning of wood or dung without proper ventilation. d. most houses in these countries are well insulated, increasing household exposure to radiation?
Tags Air amounts burning coal countries developing dung exposure hazard Health homes household houses increasing Indoor insulated particulates People pollution proper radiation releases rely significant smoke ventilation wood
Are the phases of the moon the same everywhere on earth