<span>Apr 12, 2010 - A. anxiety and mania B. depression and manic episodes C. mania and schizophrenia D. depression and schizophrenia.</span><span>
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Answer: C It shows the meaning of the symbols used on the map
Explanation:The key of a map is usually used for if the map is complicated like with symbols like triangles that usually represent mountains.
The correct answer is C. Plateou of Tibet. It has this name because it is the highest region of the world, but at the same time it's reasonably large (unlike single mountains).
The House of Representatives, as the name states, is meant to represent the population of the United States. Therefore, this is only effective if it actually includes most groups in society. This can be achieved if the scale of representation is small and if there is a high turnover.
However, this is not the case nowadays, and this is indeed a problem. A larger scale of representation means people are a lot less likely to be able to voice their opinion to their representatives or influence government in any way. Moreover, the low turnover means that most people cannot hope to become a representative.
<span>The West Africans exchanged their local products like gold, ivory, salt and cloth, for North African goods such as horses, books, swords and chain mail. This trade (called the trans-Saharan trade because it crossed the Sahara desert) also included slaves.</span>