[Updated] EXOGENIC PROCESS: WEATHERING (Filipino) | Earth and Life Science

[@oleabaguio6992]

Sir keep it up! Ang galing Ng pag explain mo, at mas magiging advance na ako sa mga mapag aaralan namin sa school! Maraming salamat po💖

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for note taking purposes Introduction Exogenic processes are external phenomena that happen at or near the Earth's surface. They are responsible for transforming rocks into sediments. Exogenic processes can be categorized into degradation and aggradation. Weathering is a degradation process that involves the physical breakdown or chemical alteration of rocks. Mechanical Weathering Mechanical weathering, also known as disintegration, is the breaking up of rocks into smaller fragments without changing their mineral composition. There are three main types of mechanical weathering: Frost Wedging Frost wedging occurs in places where temperatures fluctuate above and below the freezing point. Water seeps into cracks in rocks and freezes, expanding and exerting outward force. This repeated freeze-thaw cycle can cause the rock to break apart. Thermal Stress Thermal stress is caused by the expansion and contraction of rocks due to temperature changes. The outer surface of a rock is usually warmer than the inner portion, leading to peeling away of outer layers. This process is called exfoliation. Pressure Release Pressure release, also known as unloading, occurs when overlying rocks or materials are eroded. This releases the pressure on the underlying rocks, causing them to expand and fracture. This process is called sheeting. Granite is an example of a rock that undergoes pressure release. Chemical Weathering Chemical weathering changes the rock through chemical changes. There are four main types of chemical weathering: Oxidation Oxidation involves the loss of electrons. Minerals with high iron content are susceptible to oxidation. When iron is oxidized, it turns reddish-brown and the rock becomes weak. This process is also known as rusting. Hydrolysis Hydrolysis involves the reaction of water with the chemical compounds of the rock. This process produces clay and soluble salts. For example, potassium feldspar reacts with water to form clay, quartz, and iron. Carbonation Carbonation involves the reaction of carbonic acid with rocks. Carbonic acid is formed when rainwater reacts with carbon dioxide. This weak acid can dissolve calcium carbonate, which is found in rocks like limestone. Biological Action Biological action involves the breakdown of rocks by living organisms. The remains of dead plants and animals can form organic acids that can cause chemical weathering. Conclusion Weathering is an important exogenic process that plays a crucial role in the rock cycle. It breaks down rocks into smaller fragments, which can then be transported and deposited as sediments. Weathering also contributes to the formation of soils and landforms.

[@mushroomkun7925]

Astig nyu mag explain sir unlike other na masyadong nagfofocus sa definition wla ng explanation

[@juvilynbaja8097]

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[@Andrea-td4ym]

Meron po kayong abrasion?

[@ryanking6459]

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[@mariellabelarmino9614]

Bilis mag salita sir ..