C) Ten Percent Plan ....Hope it helps, Have a nice day?
Zoning laws is the answer hope this helps!!!
The mayor-council form of city government merges executive and legislative functions in a single group of officials. This is common in lots of smaller towns.
From lakes and grasslands with hippos and giraffes to a vast desert, North Africa's sudden geographical transformation 5,000 years ago was one of the planet's most dramatic climate shifts.
The transformation took place nearly simultaneously across the continent's northern half, a new study finds. The results will appear in an upcoming issue of the journal Earth and Planetary Science Letters.
http://www.livescience.com/28493-when-sahara-desert-formed.html