Physics
What should a person on a freely rotating turn table do to decrease his (angular) speed ?

Spread his hands outwards
Raise his hands up
Bring his hands together
Sit down with raised hands

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Physics
What is a neuron ?

Basic unit of energy
The anti-particle of neutron
Basic unit of nervous system
Particle released during radioactivity

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Physics
Air moves from the region where the air ________

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

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