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.
  Self-Pollination   If the pollen lands on stigma of the same flower, it is called self-pollination.   Cross-Pollination   When the pollen of a flower lands â¦ on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination.he transfer of pollen from a stamen to a pistil; fertilization in flowering plants. It takes place through self-pollination or cross-pollination. Please note that this answer â¦ refers specifically to the pollination of angiosperms and gymnosperms. Self-pollination: Please see the related link below.