The development of agriculture was set in motion by: answer : changes in the church. hitching animals to the plow. the discovery of writing. the discovery of oil.

The development of agriculture was set in motion by hitching animals to the plow. The correct option among all the options that are given in the question is the second option. At the beginning, people did not use animals for agricultural purpose, but with passing of time the utility of the animals for agriculture was understood and it made cultivation easy.

There is no map, maybe give the link, it may be b

Intrusion is the best answer and the newest form.