In a given year, every single place in the world receives exactly equal daylight and darkness: exactly half the year is spent in daylight and half is spent in darkness. However, based on the data you have now seen, the amount of daylight a place receives in a single day varies a lot depending on where that place is and what time of year it is. Based on the data you see for Guruapin, Savoonga, Irvine, and Marion Island, what seems to be the relationship between a place's latitude and the amount of variation in day length it experiences during the year