On a molecular level, the structure of chlorophyll is very similar to heme, which is a part of hemoglobin present in human blood. Heme, which is what makes blood appear bright red once exposed to oxygen, is bound to proteins forming hemoglobin.
Lightning is a bright flash of electricity produced by a thunderstorm. All thunderstorms produce lightning and are very dangerous. If you hear the sound of thunder, then you are in danger from lightning. Lightning kills and injures more people each year than hurricanes or tornadoes; between 75 to 100 people.
A thunderstorm is formed when a combination of moisture and warm air rise in the atmosphere and condense. Thunderstorms are most likely to occur at the warmest, most humid part of the day -- usually the afternoon or evening. Thunderstorms happen all over the world at all times of the day.