War is the key factor because this is the main reason why people in ancient times built on hills. A high hill with steep slopes and a defendable water source near a valley where you could grow crops made it difficult for enemy armies to conquer your city.
Answer:
c. communicative
Explanation:
Hello! Communication is the ability to express what we feel and think towards others, not only verbally, there are many ways to transmit messages and interact with each other, communication is a fundamental part of language, that why the correct answer is C.
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Ebbinghaus discovered that the rate at which we forget newly learned information is initially is 80% in 24 hours.
<h3>What is Learning?</h3>
As a result of experience, learning is "a process that leads to change, which enhances the potential for increased performance and future learning". The learner's conduct, attitude, or level of knowledge may all alter.
In 1885, the psychologist Hermann Ebbinghaus made the discovery that within 24 hours, 80% of freshly learnt information is forgotten.
Learn more about learning here:
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