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

Degasification
Effervescence
Surface Tension
Surface Energy

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Physics
The blue colour of sky is due to

Scattering of shorter wavelengths of sunlight in the atmosphere
Scattering of longer wavelengths of sunlight in the atmosphere
Reflection of sunlight
Refraction of sunlight

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Physics
It is dangerous to observe Solar eclipse with naked eyes because

Ultraviolet radiations from Sun burn our retina
Infrared radiations from sun burn our retina
Cosmic rays reach eyes more during the eclipse
All radiations from sun initiate chemical reactions in eyes

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