1. The grassland in Ukraine is between 44 and 52 degrees north latitude and 2 1 to 39 degrees east longitude. It belongs to high latitudes, with thin air and strong ultraviolet rays.
2. There is not much shelter on the grassland in Ukraine, such as trees or buildings, which makes it easier for ultraviolet rays to directly irradiate the grassland, so the grassland in Ukraine is scorched by the sun.