What caused a "windy shot"? Why were they so dangerous?

From 1867 to 1906 Indian Territory's mines were the most dangerous in the United States, with more than thirteen miners dying per million tons of coal produced. ... A "windy shot" occurred when a miner used too much black powder or improperly tamped the charge down before setting off the explosion.

Explanation:

food chain i would say only because there is competition on getting food and survival

the two things that develop a strong social foundation are: a. separation of church and states e. education received attention separation of church and states separate the illogical  argument that came from religious beliefs to a fact based belief. while education will make us remember the past to avoid the repeat of our mistakes.