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PHYSICS

Physics
Heat from the sun reaches earth by the process of

Radiation
Conduction
Convection
All of these

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Physics
Ocean currents are an example of

Radiation
Convection
Insulation
Conduction

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Physics
What type of heat transfer is boiling water?

None of these
Convection
Radiation
Conduction

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Physics
Ventilators are provided near the ceiling of the room because

These provide cross ventilation in the room
The exhaled warmer air rises up and goes out
These provide some sunlight in the room
These do not look nice in the lower part

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Physics
Wollen clothes keep the body warm because

Wool rejects heat from the outer objects
Wool increases the temperature of the body
Wool is a bad conductor
Wool absorbs radiant heat from outer objects

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