Fill in the blanks:
(a) Burning of wood and coal causes pollution of………………... air.
View answer
Pollution
(b) A liquid fuel, used in homes is………………....
View answer
LPG (Liquid Petroleum Gas)
(c) Fuel must be heated to its ………………. before it starts burning.
View answer
Ignition temperature
(d) Fire produced by oil cannot be controlled by……………..
View answer
Water