Which of these factors was not a cause of the outbreak of world war i?

a. international competition, which produced increases in armies and competition for colonies
b. diplomatic shifts set off by the unification of germany in 1870
c. economic instability and shrinking national production across europe
d. increase in nationalist feeling, especially in the balkan region

WW1 was caused by many things. To simplify the answer, lets go through each option.

Remember, we are looking for something that was not a cause.

a. International Competition, which produced increases in armies and competition for colonies : This did happen, countries were competing to see who was the most powerful in strength. Therefore, this option is incorrect.

b. Diplomatic shifts set off by the unification of Germany in 1870 : This is true, and it caused France and Russia to work together for a while.

c. Economic instability and shrinking national production across Europe : This is the only option that is possible. The economies of most European nations were growing, not shrinking.

d. Increase in nationalist feeling, especially in the Balkan region: This did happen, and this is a reason that Arch Duke Ferdinand was assassinated.

The answer is C.

I hope this helps! :)

both eastern and western early north american cultures were known for building wigwams and longhouses.

wigwams, also called wetus, were small houses of 8-10 feet tall, made of wooden frames covered with woven mats and sheets that were used by algonquian indians. similarly,   longhouses were also used by algonquian and the iroquois tribes, and they were built as well with pole frames and elm bark covering. however, the main difference between wigwams and longhouses is that the latter was much larger than the former, with 200 feet long, 20 feet wide, and 20 feet high with inner raised platforms used for sleeping space.