Chemistry
Which of the following is the main compound of voter ink?

Silver nitrate
Ammonium Nitrate
Silver Chloride
Ammonium Chloride

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Chemistry
Water cycle refers to

An integrated attempt to recycle water in relatively arid regions
Scientific management of water in areas excessively plagued with water-logging
Water distribution in relatively dry areas
Constant movement of water from ocean to land and back to ocean once again

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