The answer to the question above is a cell.
Your going to need show us the experiment, sense all of those are functions there is no question or details for us to answer your question
You will need to observe the moon for a month to see if the student's claim is correct.
Smog is an abiotic factor affecting a biotic factor(s).
This is because smog isn't a living organism so it is abiotic while humans are multicellular organisms so therefore, they are biotic factors.
Smog has a negative effect on many biotic factors.