Moisture speeds up chemical weathering. So, weathering occurs fastest in hot, wet climates. Weathering occurs much more slowly in hot, dry climates. In very cold, dry areas, there is very little weathering. Due to the temperature because there is high temperatures and greater snow fall increase the rate of chemical weathering. Weathering occurs when rocks and soils breakdown due to interaction with the environment. Chemical weathering occurs only in hot climates and mechanical weathering occurs only in cold climates. Chemical weathering happens in place, while mechanical weathering involves the transport of rocks.

Dear Rk Naresh

Chemical weathering can occur in different climates, but in general, chemical weathering tends to occur faster in warm and wet climates rather than cold and dry climates. For example, chemical weathering occurs more in maritime tropical airmasses than in dry polar ones. This is because higher temperatures and the presence of water enhance the chemical reactions involved in weathering processes.

In cold climates, such as polar areas, and in dry polar airmasses, physical weathering processes like freeze-thaw cycles and frost wedging are more dominant. These processes involve the repeated freezing and thawing of water in cracks and crevices of rocks, leading to the mechanical breakdown of the rock.

However, it's important to note that chemical weathering still occurs in polar areas, albeit at a slower rate compared to warmer regions. The primary reason for the slower rate of chemical weathering in polar areas is the lack of liquid water. Chemical reactions typically require the presence of water as a medium for the reactions to take place. In polar areas, water is often locked up in the form of ice, limiting its availability for chemical weathering processes.

Additionally, the cold temperatures in polar areas can also slow down chemical reactions, as lower temperatures generally reduce the rate of most chemical reactions. This further contributes to the relatively slower pace of chemical weathering in these regions.

Overall, while physical weathering processes dominate in polar areas, chemical weathering still occurs to some extent, albeit at a slower rate due to the cold temperatures and limited liquid water availability.

Dr Alain Robichaud thank you for your contribution to the discussion

I agree with Alain Robichaud that chemical weathering typically increases as temperatures rise and rain falls, which means rocks in hot and wet climates experience faster rates of chemical weathering than do rocks in cold, dry climates. A warm, wet climate will produce the highest rate of weathering. The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering. This happens because plants and bacteria grow and multiply faster in warmer temperatures. Chemical weathering typically increases as temperatures rise and rain falls, which means rocks in hot and wet climates experience faster rates of chemical weathering than do rocks in cold, dry climates. The rate of chemical weathering happens faster in warm, humid climates. Water also increases the rate of mechanical weathering. Temperature is another major factor in mechanical weathering.Chemical weathering increases as: Temperature increases: Chemical reactions proceed more rapidly at higher temperatures. For each 10 degrees C increase in average temperature, the rate of chemical reactions doubles. Precipitation increases: More water allows more chemical reactions. Climate- High amounts of water and higher temperatures generally cause chemical reactions to run faster. Thus warm humid climates generally have more highly weathered rock, and rates of weathering are higher than in cold dry climates. Chemical weathering can occur in different climates, but in general, chemical weathering tends to occur faster in warm and wet climates rather than cold and dry climates. For example, chemical weathering occurs more in maritime tropical air masses than in dry polar ones. High temperatures and greater rainfall increase the rate of chemical weathering and rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions. In Polar Regions and high mountains freeze- and-thaw is the main weathering agent. In temperate and particularly tropical zones, a warm and humid climate supports deep-reaching chemical weathering, which results in chemical decomposition of rock components.These studies concluded that the unexpected high chemical denudation in Polar Regions is the result of accelerated mechanical weathering along continuously exposed outcropping at a high flow rate. Water is the main agent of weathering, and lack of water slows weathering. Precipitation occurs in deserts, only less than in other climatic regions. Chemical weathering proceeds more slowly in deserts compared to more humid climates because of the lack of water.