Question

i-ready summarizing informational texts — instructio would-be rescuers who dashed into the tunnel were overcome by gas. for hours no one else dared to enter the suffocating, poisonous deathtrap. then, late that night, someone had an idea. they would send for garrett morgan and his new invention.garrett morgan was a successful factory owner in cleveland, ohio. he had grown up on a farm in kentucky as the son of freed slaves and the seventh of 11 children, but he left home at 14. morgan was good at figuring out how gadgets work, and by age 30 he had opened his own sewing machine shop.soon, morgan had a tailoring factory with 32 employees. in the early 1900s, factory buildings were crowded and cluttered. they were often made of wood, with no fire escapes. ____ in factories were very dangerous.firesworkerswindows

Explanation:

The text describes early 1900s factories as crowded, cluttered, wooden, and lacking fire escapes, which directly points to fires being the dangerous element in this context.

Answer:

Fires