use the concept of "opportunity cost" to explain what the American colonists gave up when they declared independence from Great Britain.​

In 1884–5 the Scramble for Africa was at full speed. Thirteen European countries and the United States met in Berlin to agree the rules of African colonisation. From 1884 to 1914 the continent was in conflict as these countries took territory and power from existing African states and peoples.

Explanation:

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