Wednesday, 23 November 2011

Lesson 2 : Microorganisms are Harmful & Useful

Microorganisms Useful - Making Bread / Tapai / Tempe / Fertilizer

Microorganisms Harmful -Cause  Tooth Decay
                                      - Turn Food Bad
                                      - Cause Food poisoning
                                      - Cause Diseases / illness

No comments:

Post a Comment