Will I die or become ill if I ingested about a teaspoon of highligher substance?
yes they are
yes
No, most people are not allergic to the solvents used in highlighter pens.
ballpoint,felt tip, marker, highlighter, quill, and many others.
Sean Penn. He's a real toxic menace.
Sharpies i think
scissors pens, pencils, notebooks, paper, highlighter, folders, etc it depends on the grade
If you're really hungry...
Yes, the ink can make them sick if ingested.
No because they make them now where they are not toxic because they were getting sued so no it is not toxic but you might want to wash mouth out with water 4to 5 times
it is Phosphor
the first highlighter was used in Ireland