Kaolinite
Another name for black soil is "regur soil" or "black cotton soil."
Another name for alluvial soil is fluvisols.
Laterite soil
tropical grassland == ==
soil
Another name for saturated soil could be soil liquefaction.
tropical
tropical savanna
The soil in tropical rainforests is generally known as "laterite soil." This type of soil is typically red in color and highly weathered due to the constant rainfall and warm temperatures in rainforest regions.
tropical
The kind of soil that the tropical has is moist because whenever it rains the soil gets wet and that becomes moist.
tropical rain forest