Basic Science JSS2 Third Term

WEEK SEVEN AND EIGHT

ENVIRONMENTAL HAZARD 1 (Erosion and Flooding)

Content

REFERENCE
Precious seed BASIC SCIENCE FOR JUNIOR SECONDARY SCHOOLS BOOK 2

ENVIRONMENTAL HAZARD 1 (Erosion and Flooding)

Introduction

An environmental hazard is the damages that occur when the natural resources such as land, forest etc., are denatured, that is, when they are affected by some external factors such as soil erosion, flooding, bush burning, deforestation, desertification, depletion of the ozone layer etc, they lose their natural properties.

Soil erosion

Soil erosion is the removal of soil by water, wind and other agents. There are two major factors that contribute to holding the particles of soil firmly together. They are:

1. The clay content of the soil: soil varies from place to place but all soils have certain properties in common.
2. View More