question: What sentence would provide a factual answer to this question: "There is more carbon dioxide in"

answer: as the population of plants decreases , carbon in the atmosphere will increase

question: What sentence would provide a factual answer to this question: "The pressure in air drops very low, so clouds"

answer: as air pressure decreases , the chance of rain will increase

question: What sentence would provide a factual answer to this question: "Water is bubbling. What characteristic is it likely to have?"

answer:
if liquid is boiling then that liquid is hot