Question.4: Fill in the blanks:
A. Fossil fuels are ______, ______ and _______.
B. On destructive distillation of coal ________, _______ and _______ are obtained.
C. Process of separation of different constituents from petroleum is called _________.
D. Least polluting fuel for vehicle is ________.
Answer:A
Question.4: Fill in the blanks:
A. Fossil fuels are ______, ______ and _______. B. On destructive distillation of coal ________, _______ and _______ are obtained. C. Process of separation of different constituents from petroleum is called _________. D. Least polluting fuel for vehicle is ________.