The website has the complete lesson note for all the subjects in secondary school but this piece showcases the JSS3 Basic Science Lesson Note on Environmental Hazards. You can use the website search button to filter out the subject of interest to you.
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TOPIC: ENVIRONMENTAL HAZARDS
CONTENT:
Farmlands, Control of Flooding and Drainage Patterns
DEFINITION OF SOIL EROSION
Environmental hazard is a term used for any situation or state of events which poses a threat to the surrounding environment and adversely affect plants and animals
SOIL EROSION is the washing away of the soil by heavy rain or wind resulting to the formation of gullies and landslides and leaving behind silt on which plants can no longer grow.
Soil erosion can also be defined as the removal of topsoil faster than the soil-forming processes can replace it, due to the natural, animal, and human activity (overgrazing, over-cultivation, forest clearing, mechanized farming, etc.). Soil erosion results in land infertility leading to desertification and devastating flooding.
CAUSES OF SOIL EROSION
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