Only one president, <u><em>Woodrow Wilson</em></u>, had a doctorate, and was president of Princeton University before becoming the U.S. President.
 
        
                    
             
        
        
        
Answer:
D. Indian princes' inability to decide on a format of government
Explanation:
The most difficult obstacle to overcome in the creation of an autonomous state after Indian independence was achieved is "Indian princes' inability to decide on a format of government."
This is evident in the case of the likes of Jammu and Kashmir, Hyderabad State, Junagarh, and Kalat who all had difficulties in accession of their state or territory to the other bigger British Raj territory who has gained independence. 
This is because they were originally using a monarchy style of governance before independence and find it hard to determine a format of government to use after independence 
 
        
             
        
        
        
Answer:
1. Drainage Basin
2. mouth
3. discharge
4. headwaters
5. meanders. 
6. floodplain
Explanation:
A drainage basin is an area where water from precipitation such as rainwater collects before draining into a water body such as a river.
A delta is created where the highest quantity of sediments are deposited at the mouth of a river. 
A river's discharge is the quantity of water flowing through a channel in a river. 
The headwaters of a river are the source of water of a river, and are usually the farthest point from where it joins/empties into another water body. 
Meanders are common feature of A stream with a low to moderate gradient. 
A river with a well-developed floodplain has a flat low-lying channel and floods when there is a high quantity of water flowing through the river.
 
        
             
        
        
        
Answer:
All of the above are correct.
Explanation:
The Mughal Empire was an empire that existed in India for several centuries. It emerged as a military power in Central Asia, but it set its eyes on India and after successive military campaigns big portion of India was conquered. The Mughals were of mixed Turkic and Mongol ancestry when they came to India, and they were also Muslim, while over time there was also gradual Persian influence.
This resulted in bringing in new cultural characteristics which resulted in some changes in India. A new type of art was introduced, the style of architecture changed, and there was a big religious influence. The legacy can be seen even nowadays, as the artistic elements that the Mughals brought in are still present, the architecture as well, with a lot of historical monuments being made by them, and a large portion of the population in the Indian subcontinent is Muslim.