agriculture
People who are involved in agriculture in North Dakota raise animals or crops or both animals and crops.
Swarm of locust can be one that can destroy whole fields of crops.
Many cash crops don't benefit the local people as the crops themselves aren't used locally, and are shipped far away. Additionally, in order to make a profit, the wages for working the fields are kept quite low as well.
The reason for the 3 field system is so that 2 of the fields can grow crops and the 3rd of the fields wouldn't have anything growing but they would, put animals there to fertiliser the crops
In China the work is just like growing their crops working on the fields/farms,.
People who grow crops and raise animals are called farmers or ranchers. Farmers generally grow crops and may raise a few animals while ranchers generally raise animals and may grow some crops.
slash and burn
migrant workers
they see animals crops and things like that
slash and burn
Domesticate
To cut their environment for crops or buildings