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 Class 8 Science: Soil and Air Pollution Questions and Answers

The table below shows four families and the sources of energy they use for cooking.
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The two families whose cooking methods have the worst effect on the environment are
A.KUFO AND KENI
B.MUTISO AND BOMA
C.KENI AND BOMA
D.MUTISO AND KUFO

 (3m 20s)
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