<span>Spartans feared helot rebellions :)) </span>
Describing the struggles of the urban poor.
Very abbreviated answer: The Black Death was another name for the plague, this claws caused by rats and lead to death of a large sum of the population.
Answer:
Tracking
Explanation:
This is a process of separating students by academic ability into groups for some subjects or all classes because students tends to fair better in classes that have students of same academic achievement.