What are the different between the state and a nation?

What was istanbul called before he ottomans conquered the city in the 15th century

Why are shark population in decline worldwide?

Which statement about factories in the industrial revolution is not true? a) some of the first advances were in textile mills b) spinning machines used water power c) water power was replaced by steam power d) coal was imported to english factories for power answer d) coal was imported to english factories for power