Exogenic Processes and Weathering

Mechanical weathering and chemical weathering.

Weathering is the process of breaking down rocks into smaller particles like sand, clay, and gravel.

Water, wind, and glaciers.

<p>Erosion is the separation and removal of weathered rocks.</p> Signup and view all the answers

<p>Exogenic processes are forms that are responsible for the progression of weathering and erosion.</p> Signup and view all the answers

<p>Pressure, temperature, frost wedging, abrasion, organic activities, human activities, burrowing animals.</p> Signup and view all the answers

<p>Tectonic forces can cause granite to rise, forming mountain ranges. As the granite cools the pressure decreases, which causes expansion. This expansion breaks the rock apart.</p> Signup and view all the answers

<p>Rocks expand when exposed to high temperatures and contract when exposed to low temperatures. This constant expansion and contraction can cause fractures in the rock.</p> Signup and view all the answers

<p>Frost wedging is when water freezes in the cracks of rocks. The ice expands, putting pressure on the rock, and eventually breaking it apart.</p> Signup and view all the answers

<p>Plant roots can grow into cracks in rocks, putting pressure on them and eventually breaking them apart.</p> Signup and view all the answers

<p>Animals like rats, rabbits, and squirrels dig into the ground to create homes, which can expose rocks and weaken them.</p> Signup and view all the answers

<p>Chemical weathering is the process of changing the chemical composition of rocks, which weakens them.</p> Signup and view all the answers

<p>Dissolution is when minerals are dissolved in water. Some minerals are more soluble than others, meaning they dissolve more easily.</p> Signup and view all the answers

<p>Halite (NaCl) and Calcite (CaCO3).</p> Signup and view all the answers

<p>Hydrolysis is when rock-forming minerals react with water, creating different kinds of clay minerals.</p> Signup and view all the answers

<p>Oxidation is the reaction of oxygen with minerals. For example, when iron oxidizes, it creates rust.</p> Signup and view all the answers

<p>Mass wasting is the movement of sediment down slopes due to gravity.</p> Signup and view all the answers

<p>Fall</p> Signup and view all the answers

<p>True</p> Signup and view all the answers

<p>Animals, especially burrowing animals, can disturb the soil and expose it to erosion by wind and water.</p> Signup and view all the answers

<p>Human activities like deforestation, agriculture, and construction can significantly increase the rate of erosion.</p> Signup and view all the answers