Examlex
Which of the following signals from an advanced civilization would be easiest to detect?
Puncturing
The act of creating a hole or piercing through a material or surface.
Dyes
Substances used to add or change color in materials such as fabric, hair, or food.
Colored Designs
Artistic creations that utilize colors strategically to enhance aesthetics and convey meanings.
Tattooing
The process of inserting pigment into the skin's dermis to create designs or text permanently.
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