Why do some historians argue that the common experience of the frontier was one of hardship and failure?

The tobacco industry was developed by of north carolina.

Which physical feature minimizes population density in northern africa?

This is my last question i can how did religious practices of ancient india influence the modern world? a.christianity and islam began in india and are both major world religions. b.hinduism and buddhism began in india and are both major world religions. c.hinduism began in india and developed into more modern indian religious practices. d.buddhism began in india and developed into more modern indian religious practices.