Question

Define the term: 

1. CNG

2. Coke

3 .Coal gas

4 . Coal tar

5 .  Carbonization

6. Plankton 

7 . Fossil fuels

8 . Petrochemicals

9. Petroleum refinery

Answer 1

1. CNG: Natural gas is stored under high pressure is called compressed natural gas.
2. Coke: It is a tough, porous, black in color and purest form of carbon substance. 
3. Coal gas: The gas obtained during the processing of coal to get a coke.
4. Coal tar: It is a black colored thick liquid with an unpleasant smell 
5. Carbonization: The slow process of convertion of dead vegetation into coal is called carbonization. 
6. Plankton: The tiny organisms found in the bottom of seas and oceans.
7. Fossil fuels: The fuels formed from the dead remains of living organisms are called fossil fuels.
8. Petrochemicals: The substances obtained from petroleum and natural gas are coiled petrochemicals.
9. Petroleum refinery: The process of separating the various constituents fractions of petroleum is petroleum refinery.