Page 21 - Social Studies STD 3

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flowers by watering them whenever necessary. We
use insecticides on all the blocks. This prevents
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insects from destroying the plants, grass and
flowers.

Dotto I thank you for this knowledge. I promise you that
I will inform my teacher about it. We will then visit
your school to learn more.

Activity 2

Choose one activity for keeping the environment clean and do
it at your school.

a) Preparing flower beds

b) Watering trees, grass, and flowers

c) Cleaning the school compound by sweeping, mopping, and
weeding flower beds

d) Educating pupils on environmental conservation

The advantages of a clean environment
A clean environment is good for our health. So, it is important

to clean the school environment to remove harmful organisms.
These organisms include flies, mosquitoes, rats and snakes.
They hide in dirty areas and cause diseases such as malaria,

cholera, dysentery, plague and typhoid. A clean environment
also prevents insects and germs from destroying food and crops

in farms and homes.

Think

What are the effects of the harmful organisms

mentioned above to people and the environment?

14

PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Social Studies STD 3.indd 14 03/08/2019 11:38