Answer:
What type of paper can you neither read nor write on?
What is round as a dishpan, deep as a tub, and still the oceans couldn't fill it up?
My first is in some but not in all. My second is into but not in tall. My third in little but no in big. My fourth in port but not in pig. My whole is made in nature's way. For clothing, rugs used every day.
What does a WW1 Trench, A Submarine and a Popular Phone App all have in common?
In the night a mountain, in the morning a meadow.
It's what light turns into in the night