The Song Dynasty was first civilization in the world to use banknotes, aka paper money. They also were the first to use gunpowder, and the first to make a permanent navy. They were also the first to discern the North using a true compass. They had many, many firsts, which helped develop the world into how it is today.
Sorry, that this is only one half of your answer. But, I hope this still helps.
In a population where theres less cleaning and more polution.
Answer:
Literature is the correct answer.
Explanation:
I need 10 points to ask a question. lol
