geography
What is Physical Weathering?
Physical weathering is the breakdown of rocks into smaller pieces by natural forces like temperature changes,water and wind without altering their chemical composition.
What is erosion?
Erosion is the process by which soil, rock or other material is gradually worn away and transported by natural forces such as wind ,water or ice.
What is exfoliation?
Exfoliation is the removal of the outer layers of a rock after repeated contraction and expansion.
Explain the process of exfoliation.
The outer layers of rock expand in the day. At night the outer layers of rock contract. Repeated expansion and contraction causes the outer layers to peel off.
What is scree?
Scree is a collection of loose, broken rock fragments that accumulate at the base of cliffs or steep slopes.
What are tributaries?
Tributaries are the smaller streams or rivers that flow into a larger river or main water body.
What is deposition?
Deposition is the process of settling of material where sediments,soil or rocks are added to a landform or landmass by natural agents like wind, water or ice.
What is a delta?
A delta is a landform created at the mouth of a river where it deposits sediments as it flows into a slower-moving or standing body of water, such an ocean or lake.
What are rapids?
Rapids are fast-flowing, turbulent sections of a river where the water flows over steep, rocky terrain.
What are agents?
Agents are natural forces that cause an effect or result.
List three types of weathering.
Physical weathering, Chemical weathering, Biological weathering
What is Freeze Thaw Action?
Freeze and thaw action is a physical weathering process where water seeps into cracks in rocks, freezes, expands and eventually causes the rocks to break apart
Please explain what Freeze Thaw Action is.
Freeze Thaw Action occurs when water enters cracks or pores in rocks and then freezes when the temperatures drop. As water freezes, it expands and exerts pressure on the surrounding rock. Over repeated cycles of freezing and thawing,this pressure causes the rock to crack and eventually break apart into smaller pieces. This process is common in cold climates.
What is chemical weathering?
Chemical weathering is the breakdown of rocks through chemical reactions, often involving water, acids or oxygen, that alter that rocks mineral composition.
What is carbonation?
Carbonation is a chemical weathering process where carbon dioxide dissolves in water to form carbonic acid, which reacts with minerals such as calcium carbonate in rocks, leading to their gradual dissolution and weakening.