Question

9. Match the following methods of water purification with their correct
definitions. Write the number in front of the correct letter.
(4 marks)
Purification
Method
Definition
a. Decantation
1. This process involves boiling the water and then condensing the
water vapour
b. UV purification
c. Sedimentation
2. This process is useful for removing impurities, when the impurities
are heavier than water,
3. This process uses a special type of light called ultraviolet light to
kill the germs in Impure water
4. This process involves the slow pouring of clear water after the
impurities are settled at the bottom
d. Distillation​

Answer 1

Answer:

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