Use the Sahel region to explain the consequences of the migration of the ITCZ
What will be an ideal response?
Answer: Some areas located on the equatorward edge of the subtropical highs are dry for most of the year, except briefly when the system shifts poleward during the summer. This condition exists in the Sahel of Africa, the region bordering the southern margin of the Sahara Desert. Unlike the Sahara, which is dry all year, the Sahel normally experiences a brief rainy period each summer as the ITCZ enters the region. During the rest of the year, the descending air of the Hadley cell leads to dry conditions.
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Identify the anthropogenic sources of phosphorus, and explain why they are a problem
What will be an ideal response?
What is wrong with the following depiction of a chemical reaction? 
A. One box contains more atoms than the other. B. These boxes contain only molecules but no atoms. C. One box contains more molecules than the other. D. all of the above
The "Velvet Divorce" refers to the political division of:
A. Ireland and Northern Ireland. B. the Czech Republic and Slovakia. C. Croatia and Yugoslavia. D. Spain and Catalonia.
Which of the following is an example of primary circulation?
A) migratory high and low pressure systems B) the monsoons C) general circulation of the atmosphere D) land-sea breezes