All and each of those landmarks are and is located in modern Egypt.
The answer to your question is knowledge. Scientific knowledge is the information gathered by the systematic study of nature.
Answer:
Thus the conditions favourable for the formation of dew are (I) a good radiating surface, (2) a still atmosphere, (3) a clear sky, (4) thermal insulation of the radiating surface, (5) warm moist ground or some other provision to produce a supply of moisture in the surface layers of air.
Explanation: (:
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