2. Fill in the blanks.(a) Burning of wood and coal causes ____of air.(

1.	2. 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» Answer: (a) BURNING of wood and COAL causes pollution of air. (b) A liquid FUEL used in homes is kerosene. (c) Fuel must be heated to its ignition temperature before it starts burning. (d) Fire produced by oil cannot be CONTROLLED by water. EXPLANATION:

2. 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»

Answer: (a) BURNING of wood and COAL causes pollution of air.

(b) A liquid FUEL used in homes is kerosene.

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

(d) Fire produced by oil cannot be CONTROLLED by water.