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| 1. |
From the boxes given below choose the one with the correct order of the following sentences. (i) That is fire. (ii) A chemical reaction takes place. (iii) Energy in the form of heat and light is released. (iv) Oxygen combines with carbon and hydrogen.– (i) (ii) (iii) (iv)– (ii) (iii) (i) (iv) – (iv) (iii) (ii) (i) – (iv) (ii) (iii) (i) |
| Answer» (iv) (ii) (iii) (i) | |