Which country has the greatest degree of a command economy? a) brazil b) canada c) cuba d) mexico

The us is not democratic (facts/data/information/reason to prove the us is undemocratic)

States might choose to cooperate at the regional or global level for all of the following reasons except (2 points) a.) to gain regional political influence b.) to engage in dispute resolution c.) to assure basic human rights d.) to encourage economic interaction e.) to increase national sovereignty

Why does the blending of many different diciplines present both challenges and opportunities to enviromental scientist?