The needs for these are obvious - buoyancy in water and resistance to wetting for the first, some form of parachute for the second, and some attaching mechanism or attractive structure for the third.
In spring cold, wetting mists occasionally envelop the land for entire days, while in summer the sky is often perfectly clear for weeks together, At all seasons of the year sudden changes of temperature, to the extent of from 30 to 500 F., are not infrequent.
She kissed the young man on his forehead, wetting him with her tears.
He checked his notes, wetting his fingers as he turned each page.
The persistent bracts (glume and pale) afford an additional protection to the fruit; they protect the embryo, which is near the surface, from too rapid wetting and, when once soaked, from drying up again.