Physics
Name the process by which bubbles from liquid are formed?

Surface Tension
Degasification
Effervescence
Surface Energy

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Physics
In the gamma decay of a nucleus

Neither the mass number nor the atomic number of the nucleus changes
The mass number of the nucleus does not change whereas its atomic number changes
The mass number of the nucleus changes whereas its atomic number does not change
Both the mass number and the atomic number of the nucleus change

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