Question

Mark the latitude values of different climatic regimes in the following figure and compare the details.

Answer 1

Comparison of details from the figure are as follows:

1. Climatic Trends (Temperature & Precipitation):

   1. Temperature increases progressively from left to right across the latitudes, starting near 0°C in the Tundra region and rising above 25°C in the Tropical Forest zone.

   2. Precipitation is minimal in the Tundra and Desert regimes, stays moderate in the Taiga-Podsol zone, and rises sharply to peak at over 3000 mm in the Tropical Forest zone.

2. Depth and Zones of Weathering:

   1. Cold and Arid Regimes (Tundra, Taiga, Steppe, and Deserts):

      • The overall depth of the weathering mantle is very shallow.

      • The subsurface is predominantly composed of fresh rock (1) and extensive zones of little chemical alteration, driven by sub-freezing temperatures or extreme dryness that restrict chemical activity.

   2. Humid Tropical Regimes:

      • The weathering mantle is exceptionally deep.

      • It features advanced chemical profiles, including moderate-to-good chemical alteration zones (3), clay mineral zones (4), and specialized layers marked by the dominance of oxides of aluminum and iron (5 & 6) resulting from high heat and heavy rainfall.