-6 J. Humber of dry cells used
4. size of nail
Learning Task 3. Inside the box, list down appliances that are commonly
used at home. Put a check mark on the appliances where
electromagnetism is applied. Choose one appliance from your list and
explain how electromagnetism is applied.​

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.