Question

Sprinkling of powder on the carrom board-------- the friction
increase
decrease
none of the above



Q13.`The frictional force exerted by the FLUIDS is called
drag
lubricants
evil
none of the above


Q14. The lowest temperature at which the substance catches fire is called
melting point
ignition temperature
boiling point
thermometer

Q15. which one of them is used for metalling the roads
coke
coal tar
carbon
calcium



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Answer 1

Explanation:

1) increase

2) ............ ....

Answer 2

Answer:

1-decreases

2-none of the above

3-ignition temperature

4-coal tar

Explanation:

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