Question

Fill in the blanks.

1) Fossil fuels are ________ __________ and ____________.

2) Process of separation of different constituents from petroleum is called __________.

3) Least polluting fuel for vehicle is _________________.

4) The slow process of conversion of dead vegetation into coal is called ____________.​

Answer 1

Answer:

1. coal, petroleum, diesel

Answer 2

Answer:

1) Fossil fuels are Coal, Petroleum and Natural Gas                                                2)  Process of separation of different constituents from petroleum is called Refining

3) Least polluting fuel for vehicles is Compressed Natural Gas(CNG).

4) carbonisation

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