an image from the US government EPA "Sunwise" program. I converted it from PDF format. the source link is here - http://www.epa.gov/sunwise/doc/poster.pdf

Tags: media, clip_art, public_domain, image, png, svg, epa, epa_sunwise, think, thinking, contemplate, dilemma, question_mark, boy, male, colouring_book, outline, line_art, cartoon, epa, epa_sunwise, think, thinking, contemplate, dilemma, question_mark, boy, male, colouring_book, outline, line_art, cartoon