1.

Fill in the blanks.​(a) Burning of wood and coal causes ______ of air. ​(b) A liquid fuel, used in homes is ______.(c) Fuel must be heated to its ______ ______ before it starts burning.(d) Fire produced by oil cannot be controlled by ______.

Answer» Fill in the blanks.​

(a) Burning of wood and coal causes ______ of air. ​

(b) A liquid fuel, used in homes is ______.

(c) Fuel must be heated to its ______ ______ before it starts burning.

(d) Fire produced by oil cannot be controlled by ______.


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