Answer:
The Immortals also known as the Persian Immortals was the name given by Herodotus to an elite heavily-armed infantry unit of 10,000 soldiers in the army of the Achaemenid Empire. This force performed the dual roles of both Imperial Guard and standing army. Wikipedia
Answer: Passive solar technology
Explanation:
Passive solar technology is the method of using materials to attract sunlight for warmth. Solar energy is the energy that comes from the sun. To store this energy gotten from the sun you'll need some elements to transfer this energy then store them. According to the passage the individual used a black material (black material is used for conveying and storing heat, it's one of the best form for doing so), the black material and the water helps warm the water needed for the individual after his hiking which actually worked.
Social Studies has bussiness and presidental matters
Geography has places in the world and thing located in those places
History has things of the past and that are very old
Hope this helps
<em>Hugs ~L</em>
Answer:
Qin Shi Huang standardized writing, a crucial factor in the overcoming of cultural barriers between provinces, and unifying the empire. He also standardized systems of currency, weights, and measures, and conducted a census of his people. He established elaborate postal and irrigation systems, and built great highway
Explanation: