HELP Which inventions had the greatest impact on trade in China during the Middle Ages?

Gunpowder and paper money

Explanation:

First, powder began to be used to make firecrackers, fireworks and flares to make signals. Then they invented weapons to use in war, in rifles and rockets.

Paper money has several advantages over the currency, it is more comfortable, a bill can replace several coins, it is lighter than the metal coins, but in itself the paper currency has no value as the coins were gold and silver.

the answer is b your welcome : )

music always has an important role in culture and societies, infact for example rock’n roll music has conditioned different areas of pop culture above all in the 60s. in the modern american society its role is different.

unfortunately many think about how some unfortunate events happened to the columbine high school shootings can be related to rock music just because the teenagers involved listened to this kind of music.

i think that we can valorize the change to take refuge in this genre of music to keep on in everyday life, teenagers are comfortable when they can listen to a song about a specific problem. realizing that someone else is living your personal drama too can them to feel less lonely nowadays.