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:A
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 …………………. .