How do these artifacts and paintings illustrate the cultural relationship between Egypt and Nubia?

Here is what I got not about the  artifacts and paintings but Egypt and Nubia relationship: Nubia and Ancient Egypt had periods of both peace and war. It is believed, based on rock art, that Nubian rulers and early Egyptian pharaohs used similar royal symbols. There was often peaceful cultural exchange and cooperation, and marriages between the two did occur.

Explanation:

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following type of cultural development caused people to want and buy new products on the market :

it's a secular holiday. it is and was a custom developed to recognize the ending of a time and a wish for a good future. the kind of kiss you exchange, if you are single, is intended to predict what kind of year you will have in the coming year.

it is saying good bye to the last year with all its ups and downs, and hello to the new year, with all its hopes and dreams.