Why was it necessary to establish formal procedures for making agreements among or between states

in order to avoid any form of betrayal or deceipt, they need to set on rules to avoid loopholes or betrayal, it could also provide proof of the agreement and ensure that everything was done efficiently and without mistakes

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.

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.