QUESTION IN PIC BELOW. PLEASE ANSWER FAST!
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the answers are given below, please read them properly:
a) This figure shows purification of water, to make it drinkable
b) Sedimentation tank: it's job is to filter all sediments, gravel, small pieces of stones etc.
Chlorinating tank: it's job is to kill germs with the help of chlorine
c) Vermi-processing toilets is a design of a toilet in which humans excreta is treated by earthworms.
In this process, human excreta is completely converted to cake like structures called vermi cakes by earthworms. Vermi cakes are used mostly in the soil as manure and fertilizers.
The vermi-processing toilet is beneficial because It reduces diseases and increases soil fertility.
Hope it helps
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