NEW DELHI: Google on Thursday dedicated a doodle to mark the start of 2020 spring season.Spring, also known as springtime is one of the four temperate seasons, following winter and preceding summer.The doodle depicted a hot-air balloon with leaves and flowers drawn over it. The balloon can be seen flying in the backdrop of a clear-blue sky with a rabbit sitting inside it.When it is spring in the Northern Hemisphere, it is autumn in the Southern Hemisphere and vice versa.