1. The rulers who came to power after Charlemagne failed to defend the empire.
2. Europe was threatened by Muslims, Magyars, and Vikings in the 9th and 10th centuries.
Yathrib. he led them to Yathrib
Answer:
formative quizzing
Explanation:
The formative questionnaires present questions that are not intended to test an individual, but rather to present concepts and information that can extend and help the student's process of understanding about a certain subject. This type of questionnaire is built taking into account the needs that the student presents with regard to academic knowledge hurting the classes, or to concepts that are presented in a more complex way.
