Question

What is odd man out.natural gas,salt,gold, manganese

Answer 1

your answer

salt is odd

because

Salt is obtained from ocean hence odd.


Rest 3 are obtained from the earth's crust.

Answer 2

The odd one out among the natural gas, gold, manganese, and salt is salt.

This is because all these things are naturally found in nature. But the main thing that makes them different from each other is their formation.  

You can find natural gas, gold, and manganese in their natural form and they are obtained in that form nature.

But salt is collected from seawater by bringing the sea water and making it produce salt after adding some chemicals in it.