3.Very short answer questions:
1. Coal is a fossil fuel made of carbon__________,_________and_________.
2. The word petroleum is derived from___________and___________.
3.___________,____________
and___________________
are obtained from petroleum.
4. All substances that contain carbon are combustible. True or false?
5. Wood is a better fuel than wood charcoal. Do you agree?
6. Coal tar is a petrochemical used for making road surface. True or false?
7. Bitumen is not obtained from fractional distillation of petroleum. True or false?
8. A non-polluting fuel__________.
9.Substances that catch fire very easily and rapidly___________.
10. The slow process of conversion of wood into coal by heat and pressure inside the Earth___________.
11. The phenomenon of raising of the Earth's temperature__________.
Answers
Answered by
1
1) crude oil and natural gas
2) petra and oleum
3) Gasoline, paraffin wax and kerosene
4) False
5) Charcoal is better fuel than wood.
6) False
7) False
8) CNG - Compressed Natural Gas
9) Inflammable substances
10) Carbonisation
11) Global warming
Answered by
2
Answer:
no.1:hydrogen,energy and
no.2 rock oil and liquid gold
no.3 fuel,gasoline,wax
no.4 false
no.5 Charcoal is considered to be a better fuel than wood because when the same amount of charcoal and wood are burnt, charcoal produces almost twice the heat produced by wood. Charcoal produces much less smoke than wood.
no.6 false
no.7 true
no.8 CNG
No.9 catch fire easily
no.10 carnonizatiom
no.11 global warming
Explanation:
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