Answer:
book - solid, liquid, gas
book is solid.
simple explanation:
solid - if objects is hard it's called "solid"
example : rock, wood, book, pen and more.
liquid : liquid is like a wet, or watery object.
example : juice, water, bromine and many more.
gas : gas is like a smoke u can see it but u can't touch it.
example : smoke, nitrogen,hydrogen, carbon dioxide and many more.