The public knowledge communicated by a range of non-specialist masses encompassing a wide subject range. General erudition: knowledge of many things.
What does General Knowledge talk about?
Knowledge about anything, anyone, anyplace in the universe. General acquaintance with facts, truths, or principles, as from study or investigation. General knowledge is also moderately associated with verbal ability, though only weakly or not at all with numerical and spatial ability.
Why is General Knowledge Needed?
There are studies that found General Knowledge can predict exam results. The study examined personality predictors &cognitive ability in student's exam performance which found General knowledge was positively related with overall exam results.
When heated any substance, the molecules move apart from each other. Alike in the air the molecules move apart from each other. We know that the warm air is lighter than the cool air. Since after heating air gets warmer, it floats up and the cool air comes down to occupy the warm air place.