How do we know the olmecs were technically advanced?
a. they created the first version of a calendar
b. they invented tools using stones and metal
c. they used latex from trees to create rubber
d. they were the first to use a writing system

C. They used latex from trees to create rubber.

Explanation:

I just took the test

the wants of children today than in colonial times are very different. as well as the roles. children now have electronics such as phones, tablets, tvs, etc. back then, kids didn’t have electronics. in the colonial times, children were expected to their parents in their work. but now, children are expected to go to school.

hope i

-lavira : )