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 ________.