In what ways did pastoralists impact farmars (settles people)?

When nomadic pastoralists encroach on farmland their impact can be devastating for farmers. This is especially so on the marginal agricultural land on the frontier zones bordering the deserts. The grazing of herds can quickly reduce plant cover. This makes the soil unstable, and erosion soon follows

a, c, & d are correct:

they wanted lands to settle the extra population.

they wanted new markets for english goods.

they wanted to avoid civil war.