Physics
As we go from Equator to North pole the value of ''g', the acceleration due to gravity

Increases
Decreases
None of these
Remains the same

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Physics
Ice is packed in saw dust because

Saw dust is a good conductor of heat.
Saw dust will not get melted easily.
Saw dust is poor conductor of heat.
Saw dust does not stick to the ice.

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Physics
The bats can fly in the dark because

They generate flashes of light
They can see the objects in darkness
They have weak legs and are likely to be attacked by predators
They generate ultrasonic sound waves

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