The opposite of the "Long Night" in the passage is the "Midnight Sun." This is a natural phenomenon that happens in places near the North Pole (like parts of Alaska, Norway, or Canada) where the sun does not set for a long period during summer. That means it stays bright outside even late at night.The "Long Night" means winter months where the sun doesn’t rise, so it is dark all day. In contrast, during summer, the opposite happens—there is continuous daylight for weeks or even months. The passage asks us to guess what the opposite of darkness for two months is, and the correct answer would be the time when there is sunlight even at night—the Midnight Sun.