Generate a sentence that answers this question: "In order to play with a beach ball, you need to fill it with".

Answer: a beach ball contains gas

Generate a sentence that answers this question: "What provides the energy to open a doorknob?".

Answer: a simple machine requires mechanical energy to function

Generate a sentence that answers this question: "The sloth's lack of urgency is a great example of".

Answer:
adaptation is when an organism develops a trait over time for survival