Which event occurred approximately 4.6 billion years ago?

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

What could the united states of america do to improve their status? name at least 3(ap human geography)

How can you use a maps legend to plan your travel