What factor distinguishes wet tropical climates from tropical wet and dry climates?

The wet tropical climate refers to the region along the equator, which receives the maximum amount of sunlight, and also the tilt of the earth has no impact on this region because the land areas existing in this equatorial region never gets tilted away from the source of direct sunlight. These areas experience a high amount of rainfall throughout the year and the temperature remains high throughout the year.

On the other hand, the tropical wet-dry climates occur near the equatorial region in both the hemisphere, that is characterized by high summers and high winters and the amount of rainfall is comparatively a little lesser than it occurs in the tropical wet climate. A large amount of tropical rainforest occurs in this region.

Thus, the temperature, amount of rainfall and the presence of tropical rainforest are some of the factors that differentiates a wet tropical climate from the tropical dry-wet type of climate.

answer; the nazca plate is converging with the south american plate