Answer:
The ITCZ in summer and the subtropical high in winter
Explanation:
Tropical prairies are situated close to the equator, between the Tropic of Cancer and the Tropic of Capricorn. They spread quite a bit of Africa just as huge zones of Australia, South America, and India.
Savannas have warm temperature all year. There are really two altogether different seasons in a savanna; a long dry season (winter), and a wet season (summer).
In the dry season just a normal rain falls. Among December and February there is no rain fall