Aherd of sheep move up the mountain to graze during summer and migrated to the valley during winter what type of migration do the sheep follow

Seasonal

Explanation:

The type of migration that the sheep follow is seasonal migration. Seasonal migration is one that is dependent on the seasons of the year. In this type of migration, animals move to different areas depending on the time of year. This usually occurs because the animals look for the most suitable places in which their subsistence would be guaranteed.

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation: