Answer:
Sometimes dark and sometimes bright, I make my way among twinkling lights. Seas and oceans obey my call, yet mountains I cannot move at all. What am I?
What goes up but never comes down?
I am black white and read all over.
I am clean when Iβm black dirty when Iβm white.
I am all around you but you cannot see me. I have no throat but you can hear me. Valued during summer but despised in the winter.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?