Near which two latitudes are the most of earth's dry climate regions found?

Tropical belt

Explanation:

The tropical belt of land and sea extending around the globe on both sides of the equator between 23.5S and 23.5N receives the most sunlight, but it is not 'necessarily' the hottest since it is covered by oceans that use some solar energy for evaporation. This combination of high moisture and intensive solar heating results in a persistent zone of convection (the upward movement of moist, unstable air) known as a tropical low, which often results in generous cloud formation and frequent rainfall. These factors also help moderate the temperatures within this zone.

The types of ecosystems that develop in this warm environment are:

1) Rainforests: As the name suggests, rainforests receive a lot of rain. The temperature stays warm in the rainforest all year long.

2) Savanna: This ecosystem has a wet season and a very dry season.

3) Deserts: Deserts receive less rainfall than other tropical ecosystems but are just as warm.