7 Que fatores ambientais influenciaram a escolha dos locais onde geralmente se estabeleciam os grupos humanos nômades?
8) Por que o estudo dos sambaquis é importante para o conhecimento
do passado?​

American troops were worried about cantracting in cuba a. yellow fever b. hepatitis c. polio

Monopolies were legal in the united states until a)the 1860s. b)the 1870s. c)the 1880s. d)the 1890s.

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?