The land of the Midnight Sun is the poetical name for Norway.
In that country from the end of April to the middle of August there is no real night darkness, but a long twilight. In the most northern part, the sun never sets completely for about two months in the summer.
In winter, however, the most northern inhabitants are not so lucky. They have no sun for two months and have to eat their lunch in twilight.

A river winding its way down to the sea, from its mountain source, will inevitably choose the lowest land through which to flow. By the time the river approaches the sea the speed at which it is travelling will have decreased considerably, thus allowing the water to drop its load of sediment and other solids. These solid particles (alluvium), therefore, form the land pockets which are characteristic of the various branches of a river delta. Owing to slow pace of a river at this stage, it will wind its way round any elevated land points rather than go over them. Deltas are most likely to form where the sea, into which the river flows, is particularly calm for most of the year. Notable deltas in the world include the Mississippi (the largest) the Ganges, and the Nile. A delta is so called because it is the name of the fourth letter of the Greek alphabet whose shape it resembles.

Yes they do, although they grow only after rain, and flower for a short time before the sun dries them up. Desert annuals survive for most of the year as seeds, and their blooms are very brightly coloured to attract insects for pollination. The flowering Cactus plants store water in their thick fleshy stems, and their flowers are also very colourful.