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Doctors Medicines MCQs Q&A

Fill in the blanks. 

(a) The slow process of conversion of dead vegetation into coal is called__________. 

(b) Coal and petroleum are formed from the dead remains of organisms and are known as __________. 

(c) The black thick liquid with __________ smell is known as coal tar. 

(d) During the processing of coal to get coke, coal tar and __________ are also obtained. 

(e) The process of separating the various constituents of petroleum is known as __________. 

(f) Excessive burning of fossil fuels is a major cause of __________.

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1 Answers

(a) carbonisation, 

(b) fossil fuels, 

(c) unpleasant, 

(d) coal gas, 

(e) refining, 

(f) air pollution.

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