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URL:https://www.learndesk.us/class/4866096718938112/lesson/7ccb8e669fbb0b01460ce97e67189aba?ref=outlook-calendar
SUMMARY:Coal and Petroleum - 31 Important Fill In The Blanks
DTSTART;TZID=America/Los_Angeles:20260511T190000
DTEND;TZID=America/Los_Angeles:20260511T200000
LOCATION:https://www.learndesk.us/class/4866096718938112/lesson/7ccb8e669fbb0b01460ce97e67189aba?ref=outlook-calendar
DESCRIPTION: 1. Coal is one of the ________ used to cook food.
2. When heated in air, coal burns and produces mainly ________ gas.
3. Coal tar is a black, thick ________ with an ________ smell.
8. All the things that are required to fulfil one’s need are called _______.
9. Anything that burns to produce energy is called a ___________.
10. ___________ is a black-coloured hard substance that mainly contains carbon.
11. The time period taken to complete the  process of carbonisation is called ___________.   
12.___________ is the most inferior and softest form of coal.
13. The least polluting fuel for vehicle is ___________.
14. The major fossil fuels are ___________ and ___________.
15. The major component of CNG is ___________.
16. Destructive distillation of coal is done at ___________.
17. Petroleum is a mixture of different ___________.
18. ___________ is another name for petroleum.
19. Devices that consume less energy are ______ and __________ lights.
20. Forests are...

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