Question

plz tell this answer then I will mark u as brilliant plz tell this answer and plz tell reason also​

Answer 1

Answer:

1. air( because all are element except air )

2. inert gas (because all are gases and they are not stable except inert gas.)

3.iodine( because all are compound except iodine.)

4.petosphere ( because all are atmosphere layer but petosphere is not so is it...)

5.oxygen (because all are in combined form ..)