Physics
Which elements are malleable and good conductors of electricity?

Tin and silver
Iodine and silver
Tin and xenon
Iodine and xenon

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Physics
Air moves from the region where the air ________

Humidity is high to the region where the humidity is low
Humidity is low to the region where the humidity is high
Pressure is low to the region where the pressure is high
Pressure is high to the region where the pressure is low

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Physics
Why does the sea appear blue in colour?

Interference of the sun light from water surface
Reflection of the sun light from water surface
Scattering of the sunlight by water molecules
Refraction of the sun light

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