question: Given the fact "a warm front causes cloudy and rainy weather", what is the answer to "When I hear news of a warm front I make sure to bring"

answer: waterproof appendage covers

question: Given the fact "pushing an object requires force", what is the answer to "When an oak leaf falls to the ground, it is because of"

answer: air mass interaction

question: Given the fact "contact between rocks over long periods of time causes rocks to smooth", what is the answer to "What would be a source of the smoothest rocks?"

answer: a riverbank

question: Given the fact "friction causes the temperature of an object to increase", what is the answer to "if the temperature gauge on a dashboard goes up while vehicle is motion, what could be responsible?"

answer:
the rubbing of the mechanical parts