question: What sentence would provide a factual answer to this question: "Which of the following is a learned behavior?"

answer: animals learn some behaviors from watching their parents
Problem: What is a random fact?

Answer: when both a dominant and recessive gene are present , the dominant trait will be visible
Problem: Generate a sentence that contains a fact.

uneven heating of the Earth 's surface cause wind
Problem: Generate a sentence that contains a fact.
Sentence: as the amount of available water decreases , tree-growth rings will become narrower
Problem: Randomly generate a fact.

Random fact: living things require respiration to use energy
question: What sentence would provide a factual answer to this question: "Which likely increased atmospheric CO2 recently?"

answer:
carbon dioxide concentrations in the air have increased over the last decade dramatically