Which of these industrial revolution inventions came first?

airplane
steamboat
assembly line
electric light bulb

How have the government regulations changed the use of child labor since the 1800s

How does a comet change when it comes close to the sun

Which distinctive feature of the notre dame cathedral allowed it to accommodate its large stained glass windows? a. its barrel vaults b. its flying buttresses c. its quadrant arches d.its square bays