Question

choose the odd one out in each case and give reason.

1. water, glass , frosted glass, air.
2. writing sheet , butter paper, cardboard, oily paper.
3. magnifying glass ,looking glass wooden box, book

please give the correct answer with reason .
I will mark brainliest who will give the correct answer ​

Answer 1

Answer:

1.Air because it can not seen by humans

2.Cardboard because it's hard

3.Book because it's time to read

Answer 2

1. Air

2. cardboard

3. Book