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.
A plant is pollinated when the pollen travels from the stamen (the male part of the plant) to the pistil (the female part of the plant). A plant might self-pollinate or the pollen might travel to another plant of the same species either on the wind or by sticking to birds and insects that land on the plants.