100 POINTS AFTER YOU ANSWEER PLZZ HELP

The longest man-made waterway in the world was the Grand Canal of China. Why was this canal so important to the peasants of China?

1.the canal kept the cost of goods down while connecting to the far-flung provinces of China
2.the canal kept the costs of good down but made travel impossible for the common man
3.the canal gave jobs to hungry peasants
4.the canal made more goods available to the masses

a.the canal kept the cost of goods down while connecting to the far-flung provinces of China

Explanation:

the 9th amendment

explanation:

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !