Which of the following improvements is a Song agricultural improvement? Gunpowder
Printing
New varieties of rice
Porcelain

New varieties of rice

Explanation:

Agricultural improvements are improvements, buildings, structures or fixtures suitable for use in farming thereby making farming easy and producing high yields.

Agricultural improvements include improved seeds (such as new variety of rice), crop protection tools, modern irrigation practices, crop management products, mobile technology, fertilizer and mechanization management and softwares. All this agricultural improvements help farmers increase productivity.

answer; the correct answer to the above statement is to increase the production of milk in a herd of milk cows, the highest producing cows were chosen as the mother;

so you know what happened be fore you were alive

explanation: