question: What sentence would provide a factual answer to this question: "During a vigorous workout which will need to increase?"

answer: as energy required for an activity increases , pulse will increase
Problem: What is a random fact?

Answer: refraction is when light bends
Problem: Generate a sentence that contains a fact.

precipitation is when hail fall from clouds to the ground
Problem: Generate a sentence that contains a fact.
Sentence: pencil lead contains mineral graphite
Problem: Randomly generate a fact.

Random fact: if a habitat is removed then that habitat is destroyed
question: What sentence would provide a factual answer to this question: "What are sources of shelter for small animals?"

answer:
rocks are a source of shelter for small animals in an environment