Answer:
- cpDNA organization is more similar to that of prokaryotes than eukaryotes
- chloroplast chromosomes contain genes that are involved in photophosphorylation
I think that it is atmosphere but not 100% sure you might want to double check
Just as they do in most ecosystems, decomposers feed off of dead or decaying matter, recycling it back into the ecosystem for plants to receive essential nutrients and to.. basically, de-clutter the world.
I can't answer 1 but 2=First, make sure you weather proof the house, than go from there and try anything you think is necessary in this situation.