All of the following are likely consequences of indoor air pollution except an increase in

 Indoor air pollution happens when certain air poisons from particles and gases pollute the quality of indoor zones. These can lead to serious health issues and almost all of the mentioned above can occur as all except the skin cancer are caused due to breathing in of polluted air.

c.it was a major banking and commerce center.

d.leonardo da vinci

d. to fix corruption and problems in the catholic church

d. to reform the catholic church from within

a. human faces are presented in an idealized, spiritual manner.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.