16.
Fossil fuels are rich in hydrocarbon substances that contain the elements ‘A’ and 'B'. What are these
elements ‘A’ and 'B' respectively?
(1) Hydrogen and oxygen
(2) Carbon and oxygen
(3) Hydrogen and carbon
(4) Hydrogen and sulphur
Answers
Answered by
1
Explanation:
3) Hydrogen and carbon
Answered by
1
Answer:
3) hydrogen and carbon
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