How to Hard-Boil an Egg. Hard-boiling eggs is almost as easy as boiling water, if you know the right process: Cooking eggs too long or too vigorously can result in cracked shells, tough whites, and green-gray, sulfuric-smelling yolks.
Although all flowering plants rely on pollination for reproduction, there is a variation in how plants pollinate. There are two types of pollination called self-pollination and cross-pollination. Self-pollination is the more basic type of pollination because it only involves one flower.
When buying orchids, the most common varieties are the phalaenopsis (moth orchid), the vanda, paphiopedilum (slipper orchid), or the dendrobium (Singapore orchid). Many decorative forms of orchids are grown specifically to be used as cut flowers.