Physics
Which one of the following is not a feature of Indifference Curve?

They do not intersect each other
They are concave to each other
They are parallel to each other
They slope downwards to the right

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Physics
The term ''equinox' means

The path which the Earthtakes around the Sun
The axis of the Earth around which it rotates
The time when the Sun seems to be going round and round in the sky in the Arctic but does not go below the horizon
When the day and night are of equal duration

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