How could seasonal movement benefit pastures?

Correct answer: Grass got time to regrow because one place was not grazed continuously

Seasonal movement helped pastoralists use grazing land without exhausting it. If animals stayed in one pasture throughout the year, they would eat the grass repeatedly, leaving little time for new growth. By moving to another area during a different season, the first pasture received a period of rest. Rainfall and natural growth could then restore the grass before the animals returned. This practice balanced the needs of the herd with the ability of the land to recover.

Option A is correct because non-continuous grazing allowed grass to regrow. The other options do not describe pasture management: land does not normally turn into stone, grass still needs water, and animals were not kept away from pastures. Seasonal mobility was therefore an intelligent way of sharing and protecting limited natural resources, not a sign of aimless wandering.