Objects we see can be placed into two categories: luminous objects and illuminated objects. luminous objects are objects that create light and illuminated objects are objects that reflect light. which of these is an example of a luminous object?

a) sun
b) cloud
c) moon
d) sky

Harry lives in a city, and he has a lung condition known as asthma. on certain days, harry has to stay inside because pollutants in the air make it difficult for him to breathe. which of these pollution sources are nonpoint sources that might bother harry if he goes outside? choose the two that apply.