Question

हरप्पन ट्रेंड इन मेसोपोटामिया​

Answer 1

Answer:

Indus–Mesopotamia relations are thought to have developed during the second half of 3rd millennium BCE, until they came to a halt with the extinction of the Indus valley civilization after around 1900 BCE.[6][7][8] Mesopotamia had already been an intermediary in the trade of lapis lazuli between South Asia and Egypt since at least about 3200 BCE, in the context of Egypt-Mesopotamia relations.

Explanation:

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Answer 2

Why does a ray of light passing through the centre of curvature of a concave mirror after reflection is reflected back along the same path ?