Use of fertilizer *crop rotation

*use of seedlings

*improved irrigation

*new types of plows

The above list describes agricultural improvements under the

A.

Song Dynasty.

B.

Sui Dynasty.

C.

Yuan Dynasty.

D.

Ming Dynasty.

How would high tariffs hurt america? a. fewer immigrants would be able to move to america b. sales of american products to other countries would go down c. americans would sell more goods to other countries d. goods imported from other countries would cost less

The northwest ordinance guaranteed three rights for the settlers of the northwest territory. what were they?

What did the introduction of silk into the mediterranean do for the abbasid empire