question: What sentence would provide a factual answer to this question: "What are nutrients a source of energy for?"

answer: nutrients are a source of energy for living things
Problem: What is a random fact?

Answer: no light shines through an opaque object
Problem: Generate a sentence that contains a fact.

landfills have a negative impact on the environment
Problem: Generate a sentence that contains a fact.
Sentence: skeletal system is made of bones
Problem: Randomly generate a fact.

Random fact: lava is found above the ground
question: What sentence would provide a factual answer to this question: "When both a dominant and recessive gene are present, the dominate what will be visible?"

answer:
when both a dominant and recessive gene are present , the dominant trait will be visible