Question

11. Which is the most abundant metal in the earth's crust?
A. Aluminium B. Copper C. Iron

12. Which metal produces fire when dropped in water?
A. Calcium B. Iron C. Sodium

13. Which fuel is used to drive rockets?
A. Petrol B. Diesel oil C. Liquid hydrogen

14. Which fuel is used to run a modern submarine ?
A. Petrol
B. Nuclear fuel C. Diesel oil

15. Which drug is present in cold drinks ?
A. Caffeine B. Cocaine
C. Opiate

16. From which of the following substance is a raincoat made ?
A. Polyvinyl chloride
B. Polythene C. Bitumen

17. Which phenomenon is caused due to the reflection of light?
A. Sunlight B. Lightning C. Moonlight

18. Which type of sugar does cane juice contain ?
A. Maltose Sucrose C. Glucose

19. Which space shuttle first went into space ?
A. Atlantis B. Enterprise C. Columbia

20. Which fuel causes the maximum pollution ?
A. Nuclear fuel B. Diesel oil C. Petrol

21. Which gas is used as cooking gas ?
A. Oxygen B. Nitrogen C. Methane​

Answer 1

$\mathfrak\pink{Answer}$

11. a. Aluminum

12. c. sodium

13. c. Liquid hydrogen

14. c. Disel oil

Explanation:

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