According to the phylogenetic tree diagram, modern birds are most closely related to?
Does lightning travel from the earth to the sky, or from the sky downward? Lightning travels both ways. Lightning is a huge electrical discharge that results from vigorous motions that occur in thunderstorms. Lightning can travel from cloud to cloud, within the same cloud, or between the cloud and ground. In-cloud lightning discharges are more common than cloud-to-ground discharges and are not as hazardous. Cloud-to-ground is the best known type of lightning and it poses the greatest risk.
Lightning can occur inside clouds, between clouds and from clouds to the ground. Around one quarter of lightning is from cloud to ground. When lightning strikes the ground it seeks out the shortest route to something with a positive charge, this might be a tree, a tall building or if theyâre very unlucky, a person.