Choose two.
possible reasons for the interaction between pastoral and agrarian societies include
1.changes in climate
2.overpopulation
3.the development of trade routes
4.strong nomadic leadership wanting to expand their lands

1. changes in climate

2. strong nomadic leadership wanting to expand their lands

Explanation:

The pastoral society is a nomadic group of people who travel with a herd of domesticated animals, which they rely on for food while the agrarian society, or agricultural society, is any community whose economy is based on producing and maintaining crops and farmland.

Having defined what both societies represent, there's a need to state the possible reasons for interaction between these two societies.

The changes in climate, especially increased atmospheric CO2, temperature and precipitation had great impacts on the agarian and pastoral societies as there was a need to balance the atmospheric conditions in other for both plants and animals to survive.

Normadic leadership whereby a fixed habitation which regularly moves to and from the same area in other to settle down also led to the interaction between these two societies.

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years

in the 1800s, chinese workers migrated to the united states, first to work in the gold mines, but also to take agricultural jobs, and factory work, especially in the garment industry. chinese immigrants were particularly instrumental in building railroads in the american west, and as chinese laborers grew successful in the united states, a number of them became entrepreneurs in their own right. as the numbers of chinese laborers increased, so did the strength of anti-chinese sentiment among other workers in the american economy. this finally resulted in legislation that aimed to limit future immigration of chinese workers to the united states, and threatened to sour diplomatic relations between the united states and china.