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  • Meaning of Environmental Hazard
  • Definition of Soil Erosion
  • Causes of Soil Erosion
  • Types of Erosion
  • Effects of Soil Erosion
  • Control of Soil Erosion
  • Definition of Flooding
  • Causes of Floods
  • Effects or Consequences of Flooding
  • Prevention of Flooding
  • Meaning of Drainage
  • Types of Drainage Patterns

Meaning of Environmental Hazard

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

Definition of Soil Erosion

Soil erosion is the washing away of the soil by heavy rain or wind resulting in 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 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.

Lesson tags: Basic Science Lesson Notes, Basic Science Objective Questions, JSS3 Basic Science, JSS3 Basic Science Evaluation Questions, JSS3 Basic Science Evaluation Questions First Term, JSS3 Basic Science First Term, JSS3 Basic Science Objective Questions, JSS3 Basic Science Objective Questions First Term
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