What are 5 ways rocks can be weathered?
The usual agents of mechanical weathering are pressure, temperature, freezing/thawing cycle of water, plant or animal activity, and salt evaporation.
What are the 5 factors that affect weathering?
Factors affecting weathering
- rock strength/hardness.
- mineral and chemical composition.
- rock texture.
- rock structure.
How humans can cause weathering and erosion?
Deforestation. Deforestation, which is logging or burning forests, is a way in which humans cause erosion. Removal of the vegetation covering the ground causes the soil, which is unprotected against wind and water, to erode. The loss of topsoil essentially destroys the ability for the land to regenerate.
Which of the following human activities contribute to weathering?
Burning of fossil fuels (in industries, vehicles, etc.) generate sulfurous (i.e. sulfur based) and nitrogenous compounds (i.e. nitrogen based). These chemicals upon entering water and air converts to sulfuric acid and nitric acid, both of which cause chemical weathering of rocks.
What are the factors that affect weathering of rocks?
There are two factors that play in weathering, viz. Temperature and Precipitation. Warm climates affect by chemical weathering while cold climates affect by physical weathering (particularly by frost action). In either case the weathering is more pronounced with more moisture content.
How do rocks affect weathering?
Certain types of rock are very resistant to weathering. Igneous rocks, especially intrusive igneous rocks such as granite, weather slowly because it is hard for water to penetrate them. Other types of rock, such as limestone, are easily weathered because they dissolve in weak acids.