question: What sentence would provide a factual answer to this question: "What can help you sleep soundly?"

answer: when sound reaches the ear , that sound can be heard

question: What sentence would provide a factual answer to this question: "What is an example of endangered?"

answer: endangered means low in population

question: What sentence would provide a factual answer to this question: "Which is likely to be a step in a shrub's reproductive process?"

answer:
pollination requires pollinating animals