On Earth, savannas cover half of the surface of Africa and large areas of Australia, South America, and India. Based on their locations, they could have either tropical climates (humid and wet) or more desert-like climates (hot and dry). Annual precipitation averages at around 30 - 50 inches per year. During the dry season, less than about 4 inches fall. Some prey animals include giraffes, zebras, wildebeest, gazelles, water buffalo, and ostriches. Some predators include cheetahs, lions, leopards, and hyenas. Other animals which are too big or strong to be prey but are not predators could be hippos, rhinos, and elephants. A short list of plants that live in the savanna could include grasses (Rhoades grass, red oats grass, lemongrass, etc.). Very few trees live in the savanna due to low rainfall in small areas, but the most common trees are acacia, bushwillows, baobabs, or spurge. Some abiotic (nonliving) factors in the savanna could be soil, rocks, small lakes or streams, or the wind.
Hope this information helped you.
Most of it is from National Geographic or Brittanica.