Question

II. Fill in the Blanks
Fill in the blanks with suitable word/s.
1. Resources which get replenished by natural processes in a certain period of time is called ___________.
2. ___________ is a mixture of various constituents such as lubricating oil, paraffin wax, etc.
3. ll the things that are required to fulfil one’s need are called ___________.
4. Anything that burns to produce energy is called a ___________.
5. ___________ is a black-coloured hard substance that mainly contains carbon.
6. The time period taken to complete the process of carbonisation is called ___________.
7. ___________ is the most inferior and softest form of coal.
8. The least polluting fuel for vehicle is ___________.
9. The major fossil fuels are ___________ and ___________.
10. The major component of CNG is ___________.
11. Destructive distillation of coal is done at ___________.
12. Petroleum is a mixture of different ___________.
13. ___________ is another name for petroleum.
14. Devices that consume less energy are ___________ and ___________ lights.
15. Forests are ___________ natural resources.
16. Petra means ___________ and oleum means ___________.
17. ___________ is the leading producer of crude oil.
18. When heated in air, coal burns and produces mainly ___________ gas.
19. We should use ___________ instead of individual vehicles.
20. Separation of different constituents of petroleum is called ___________.

Answer 1

Answer:

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Answer 2

1. renewable resources

2. Petroleum

3. resources

4. fuel

5. Coal

6. carboniferous age

7. Peat

8. CNG

9. coal, petroleum

10. methane

11. 1000°C

12. hydrocarbons

13. Black gold

14. CFL, LED

15. exhaustible

16. rock, oil

17. Saudi Arabia

18. carbon dioxide

19. carpools

20. refining of petroleum