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5-Biological weathering is weathering caused by plants and animals. Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms

1-There are five mechanisms that can exact change on landscape: uplift, subsidence, erosion, deposition, and volcanism. These mechanisms, both singularly or in combination, can, over time, destroy a preexisting landscape and create a new, entirely different-looking landscape

2-Weathering breaks down and loosens the surface minerals of rock so they can be transported away by agents of erosion such as water, wind and ice. There are two types of weathering: mechanical

3- chemical and biological weathering

4 Biological weathering is weathering caused by plants and animals. Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms. Chemical weathering is weathering caused by breaking down of rocks and landforms