Question

Name the following
1. Inexhaustible natural resources.
2. Exhaustible natural resources [ Any three]
3. Remains of dead animals and plants
4. Oldest variety of coal
5. Fossil fuels
6. A foul smelling liquid mined from earth.
7. A combustibe gas which comes out along with petroleum from the oil wells.
8. A combustible gas obtained by the destructive distillation of coal.
9. A fuel for heavy vehicles.
10. The useful products obtained from the petroleum
11. Different varieties of coal.
12. Residue left after the destructive distillation of coal tar.
13. The process in which complex organic substances are heated in the absence of air to get
simple volatile fractions.
14. Chemical used as moth repellent.
15. The process which is used for the manufacture of petrol from petroleum gas.
16. Alternative sources of energy (any three) Association which offers the tips to conserve
petrol & diesel.
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Answer 1

Answer:

1 sunlight and air

2 coal , petroleum, fossil fuels

3 fossil

4 bitumen

5 coal, petroleum

6 coal tar

7 natural gass

8 petrol, diesel

9 O2

10 gasolen

11 bitumen, anthracite

12 paraffin wax

13 factional distillation

14 ?

15 ?

16 natural gass