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Factors that affect the Rate of Weathering (Relief (A steep relief can…
Factors that affect the Rate of Weathering
Relief
A steep relief can increase some forms of physical weathering, but can slow chemical weathering
Most forms of chemical weathering need rain to be stationary, but steep slopes encourage fast surface run-off
A steep slope will cause weathered rocks to fall away quicker exposing fresh rock beneath to be weathered
Humans
Humans can add chemicals to water courses
Humans can deforest or forest areas
Humans can introduce animals or remove animals
Climate
hot temperatures increase the rates of chemical reaction, therefore increasing chemical weathering
Wet areas are going to see an increase in chemical weathering
Wet and warm areas are also likely to see an increase in the amount of vegetation, increasing biological weathering.
Aspect
If it is not facing the sun it might have less vegetation increasing the rates of chemical weathering and physical weathering
If a slope is facing the sun it might have more vegetation growing on it, increasing biological weathering
The direction it faces can affect the amount of sunshine it receives
Vegitation
Areas of land that have vegetation are more likely to experience rapid biological weathering
Vegetation will intercept rainwater, reducing rates of some chemical weathering
Areas of land that have vegetation are likely to insulate the rock from large temperature ranges, reducing some physical weathering
Geography
Type of Rock can affect the rate it weathers
Rocks with cracks will experience a higher rate of weathering
Soft rocks are much more vulnerable to weathering than strong rocks