Generate a sentence that answers this question: "A person can create the most friction by rolling a ball over".

Answer: as the roughness of something increases , the friction of that something will increase when its surface moves against another surface

Generate a sentence that answers this question: "Mineral graphite could be found in places such as".

Answer: pencil lead contains mineral graphite

Generate a sentence that answers this question: "With more people eating cereal there comes a need for more".

Answer:
as the use of a crop increases , the amount of crops planted will increase