Question

give 3 examples of weathering.

Explanation:

Weathering is the breakdown of rocks, soil, and minerals at the Earth's surface. Three examples are: 1. Physical weathering like freeze - thaw action (water in rock cracks freezes, expands, and breaks the rock). 2. Chemical weathering such as oxidation (iron in rocks reacts with oxygen to form rust - like compounds, weakening the rock). 3. Biological weathering, for instance, plant roots growing into rock cracks and expanding to break the rock.

Answer:

1. Freeze - thaw action (physical weathering): Water enters rock crevices, freezes (expands), and fractures the rock.
2. Oxidation (chemical weathering): Iron - rich rocks react with oxygen, forming iron oxides (rust - like substances) that weaken the rock.
3. Plant root growth (biological weathering): Roots of plants grow into rock cracks, expand, and break the rock.