D. seems the most probable since plastic is barely biodegradable.
Carrying out experiments to prove a point and to further knowledge about the world around us and the galaxy we live in
I'm not sure about number 1 or number 6, but I know that 3 is nucleic acid and 5 is solution.
I believe the answer would be D) kitchen scraps and grass clippings
I am not sure but I am guessing carbon and nitrogen :)