Which type of air pollution was caused by factories during the Industrial Revolution? smoke from burning coal
soot from forest fires
smog from high pollen levels
smoke from vehicle exhaust

Plz which of the following provisions of the compromise of 1850 was designed to appeal to slave states? a. congress passed a strict fugitive slave law. b. the slave trade was banned in washington dc. c. texas agreed to give away some of its land so that the territory would be available for future states. d. california was admitted to the union as a free state.