PLZ HELP I WILL GIVE U ALL MY POINTS AND BRAIN LIST IF U HELP Which Sung dynasty innovation most helped sea trade flourish?
•gunpowder
•the compass
•the Silk Road
•the Grand Canal

the compass

Explanation:

I don't know

i would say the compass because it helped them navigate, it also made traveling and exploring faster.

Explanation:

Hope this is helpful.

Base on the question which is asking to state the statement that tells the truth about slavery in the US before the Civil War, and base on my further research and investigation, I would say that the answer would be that The North opposed the extension of slavery into new states. I hope you are satisfied with my answer and feel free to ask for more