How does nationalism contribute to the start of ww1

What led to the environmental damage that caused the dust bowl? 1. desert winds emerging from the southwest 2. rotating crops every year and having fallow land 3.overplanting throughout the great plains 4.a year-long drought

What was the result on the u.s. economy because of the major changes in atlantic shipping prior to and during the war of 1812?

Religious men who lived apart from society