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SubjectPaid lesson

CHANGE AROUND US

ClassNotes Team 4 MIN READUPDATED 29 JUN 2026

WEEK 5

TOPIC: CHANGE AROUND US

INSTRUCTIONAL MATERIALS:

A chart showing different types of erosion

CONTENT

EROSION

The wearing away of the surface soil by water or wind is called erosion. Wind and water, which cause erosion, are called agents of erosion.

Effects of erosion

Erosion has several effects on human beings. The following are some of them:

  1. Crops grow in the soil. Yam, maize, potato, guinea corn, cassava, millet, soya beans and other crops absorb chemical substances from the soil. These chemical substances help the crops to remain healthy, grow and produce a high yield. Human beings need a high yield of crops so as to be adequately fed.

Erosion washes away the topsoil and with it the chemical…