Answer:
Though I am dark Adam married me.
you need thousands of me to create a digital image.
Everyone in the world needs me. They generously give me but never take me. What am I?
First I may be your servant's name; then your desires I may proclaim; And when your mortal life is over hold all your wealth within my power.
I am a mountain at night, meadow at day. What am I?
A little house full of meat, no door to go in and eat.