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13/12/2020 10:51 am
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Match Column I with Column II.
Column I - Column II
(a) Black surface - (i) Water heaters
(b) Turbine - (ii) Solar cell
(c) Semi conductors - (iii) Generators
(d) Digestor - (iv) Biogas
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13/12/2020 10:53 am
(a) - (i)
(b) - (iii)
(c) - (ii)
(d) - (iv)