Question

The marks in the sand are circular in shape

Answer 1

Answer: circular geoglyphs

Explanation:

Archaeologists have mapped dozens of circular geoglyphs etched into the sand near the ancient Peruvian town called Quilcapampa in the Sihuas Valley. The geoglyphs they mapped have different ring-shaped designs, some comprising several intertwined rings. Some of the geoglyphs consist of three or more circles