The Columbian Exchange caused population growth in Europe by bringing new crops from the Americas and started Europe's economic shift towards capitalism. Colonization disrupted ecosytems, bringing in new organisms like pigs, while completely eliminating others like beavers.
Nkrumah called for political freedom in Ghana, but once in power he put in place a one party system with himself as a permanent leader and this is the way that Kwame Nkrumah's early political beliefs not match the policies he put in place once in power in Ghana. The correct option among all the options that are given in the question is option "C".
There were several major negative effects of the economic policies of European colonizers, but the two biggest are that they exploited native workers and increased the demand for slaves.
The statement that explains why Roosevelt offered U.S. naval support to Panamanian rebels fighting for independence from Colombia is <em>The Colombian government would not allow the United States to have control over the Panama Canal Zone</em>. The United States helped Panama declare independence from Colombia, then negotiated for the canal. On November 3, 1903, Panama with United States Navy support revolted against Colombia and became a new republic. The U.S. gained the rights in perpetuity to the canal strip.
