What is the sun made of, how did it form ,and when was it first found

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government

Name the country with the highest population in africa?

Which of the following are commonly shown as a topographic map