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.

2. multiply 3/4 by 8

step-by-step explanation:

3/4 ÷ 1/8

copy dot flip

3/4 * 8/1

24/4

6

you aint got nothin on my lil weenies

i actually have a suggestion instead of an answer, how about next time instead of spending the time to time up the question you take that time and try to figure something out for yourself, do you understand?

explanation:

leave a 5 star and a and brainliest answer if you understand, hope this betters you day, or not i don't really care either way. xd