question: What sentence would provide a factual answer to this question: "A higher barometer reading means"

answer: as air pressure increases , the reading on a barometer will rise

question: What sentence would provide a factual answer to this question: "It is much harder to go star gazing in the city as opposed to the mountains due to the amount of factories doing what to the air"

answer: as light pollution increases , seeing the stars will be harder

question: What sentence would provide a factual answer to this question: "If a tree falls in the forest, then gets covered in mud, it might form :"

answer:
An example of a fossil is a paw print in rock