Energy of the sun arises mainly from __________ reactions...
Energy of the sun arises mainly from __________ reactions.
fusion
fission
combustion
none of these
Correct answer is A
No explanation has been provided for this answer.
Corrosion of metals can not be prevented by its ...
Which of the following fastening devices has a head at one end and a nut fitted to the other ? ...
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A high pressure boiler generates steam at a pressure greater than __________ kg/cm2 . ...
Speisses is a mixture of the following: ...
In troposphere (the weather domain), the temperature 't' at height 'h' above the sea...
The softness or hardness of a grinding wheel depends upon the type & amount of bonding material ...