Question

combustio
2. Fill in the blanks.
(a) Burning of wood and coal causes
(b) A liquid fuel, used in homes is
(c) Fuel must be heated to its
burning.
(d) Fire produced by oil cannot be con
3. Explain how the use of CNG in auto
our cities.
4. Compare LPG and wood as fuels.​

Answer 1

Burning of wood and coal causes combustion.So answer is (a)