<span>William F. Whyte used observation to study Italian street-corner men. He was a sociologist noted for his studies of urban sociology.</span>
Answer:
A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence.
Answer:
Rapid Growth of Population
Increase in Incomes
Deficit Spending for Development
Increase in Money Supply
Inadequate Agricultural Output
Inadequate Industrial Production
High-priced Imports
Explanation: