
The way in which the plants promote mechanical and chemical weathering when they inhibit erosion.

Answer to Problem 1GST
The plants promote mechanical and chemical weathering by their extension of roots and chemical actions. But, they inhibit erosion by holding the soil tightly and are resistant to water flow and wind.
Explanation of Solution
Weathering is the breakdown of rocks that are present on the Earth's surface, by the action of various naturally occurring geological agents such as wind, water, glaciers, extremes of temperature, biological activity, and so on. Weathering is mainly of two types, namely mechanical weathering and chemical weathering.
Plants are associated with soil and regolith by extending their roots into the surface of the Earth.
These roots bind the soil strongly to their surface. In the process, to attain minerals and nutrients, they extend roots into the rocks and wedges that are present in the soil. Thus, they create fractures and break the rocks along their joints. Some plants, lichens,
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Chapter 6 Solutions
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