1.

1). Purification2). Decrease3). Mundane4). Placate

Answer»

The MEANINGS of the words are:

Adulteration=> to corrupt, DEBASE, or MAKE impure by the addition of a foreign or inferior SUBSTANCE or elements

Purification=> to make pure

Mundane=> lacking interest or excitement; dull

Placate=> to make calm

Thus option 1 is the correct answer.



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