Basic General Knowledge
The main purpose of ASEAN (Association of South-East Asian Nations) is

None of these
to maintain higher standards of living among member nations
to accelerate economic progress and maintain economic stability
to provide collective defence and economic cooperation

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Basic General Knowledge
On a night when the sky is clear, the temperature may dip considerably; on a cloudy night the temperature will usually dip much less. The reason for this difference is that

the clear sky allows the cold of outer space to reach the earth
the clear sky allows radiant energy to escape readily from the earth
on a cloudy night the clouds are warm and therefore retard the cooling
current of air carry the heat away from the earth on a clear night

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Basic General Knowledge
What is the function of a dynamo?

To convert light energy into heat energy
To convert heat energy into light energy
To convert mechanical energy into electrical energy
To convert electrical energy into mechanical energy

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