Processes and landforms in tropical environments: แบบฝึกหัด

In the humid tropical (rainforest) climate, which factor is primarily responsible for the high annual rainfall totals and the absence of a distinct dry season, with mean monthly temperatures typically around \( 27^\circ\text{C} \)?

During the process of ferrallitization (latosolization) in tropical soils, what happens to the silica-to-sesquioxide ratio (\( SiO_2 : Al_2O_3 \)) in the soil profile?

What term describes an exposed steep-sided, domed granite hill or mountain rising abruptly from a surrounding plain in tropical environments?

Briefly outline the two-stage process of tor formation in granite landscapes under tropical conditions.

Name the reddish, heavily leached tropical soil rich in iron and aluminium sesquioxides that is characteristic of humid tropical rainforests.

A Gersmehl diagram represents the nutrient flows and storage in a tropical rainforest ecosystem.
(a) State the name of the largest nutrient store in a humid tropical rainforest.
(b) Outline two reasons why the litter store remains very small in this ecosystem.
(c) Name the primary transfer pathway of nutrients from the soil store out of the ecosystem.

Tropical karst landscapes feature distinctive landforms such as cockpit karst and tower karst.
(a) State the primary chemical weathering process that acts on limestone rock to produce karst landforms.
(b) Describe the structural and topographic differences between cockpit karst and tower karst.
(c) Explain two climatic conditions in humid tropical regions that accelerate the rate of karst development compared to temperate zones.