The adoption of which two practices to increase the amount of food produced per unit area of farmland?

four-field crop rotation,

the application of chemical pesticides,

the use of steam-powered tractors,

land irrigation using steam-powered pumps,

selective livestock breeding

The correct answers are A) four-field crop rotation and E) selective livestock breeding.

The adoption of the following two practices helped to increase the amount of food produced per unit area of farmland: four-field crop rotation and selective livestock breeding.

It was during the 16th century that new agricultural technologies innovated the way farm fields were worked. The four-field crop rotation that allowed farmers to diversify the kind of crops that grew in the same place, represented a great advancement for agriculture. Something similar happened with the breeding of selective stock in farms. New advancements in animal nutrition allowed the production of better food that could be traded at better prices.

the growing interconnectedness of the world through communication, trade, and the exchange of ideas is an important theme in the history of the 20th and 21st centuries.

explanation:

i would say your answer is a)

sorry if im wrong