The crossword solution for the term TWENTY QUESTIONS CHOICE is MINERAL. MINERAL is a naturally occurring, inorganic solid substance with a definite chemical composition and a crystalline structure. Minerals are found in rocks, soil, and water and are essential components of the Earth's crust. They are used in many industries, such as construction, manufacturing, and agriculture. Minerals are also important sources of energy, such as coal and oil. Minerals are also used in jewelry and cosmetics.