Generate a sentence that answers this question: "I would have a harder time sliding with my socks on".

Answer: friction acts to counter the motion of two objects when their surfaces are touching

Generate a sentence that answers this question: "All of the following contain chloroplasts but this".

Answer: a plant cell contains chloroplasts

Generate a sentence that answers this question: "A polar bear is white because".

Answer:
the coloration of fur is an inherited characteristic