There is no certain time on how long it takes. Because the factors will always be different and the factors heavily affect the evaporation time. Some factors include: humidity, heat, how the sun is visible (whether clouds are covering it or not)
D: Sóng có thể truyền qua khoảng không của không gian,
với tốc độ ánh sáng.
Add then divide the hint clearly backs it up two so yeahh