40 , muhammad was 40 years old when he recieved the first message from jibril
Answer:The increased demand for cheap housing by urban migrants led to poorly built homes that inadequately provided for personal hygiene. Immigrant workers in the nineteenth century often lived in cramped tenement housing that regularly lacked basic amenities such as running water, ventilation, and toilets.
Explanation:
B. In a unitary system there is only one type of government; in a confederal system there are multiple types of governments.
<span>The "power" schools during the initial collegiate athletic contests were the Ivy League schools. The Ivy League includes 8 private tertiary education institutions located in the Northeast of the United States. These are </span>Brown University, Harvard University, Columbia University, Princeton University, University of Pennsylvania, Dartmouth College, Yale University, and Cornell University.
