Simply put it could die off by not being able to compete with native species for resources. Or it could out compete the native species.
The ecosystem is everything that exists in a particular environment.
Answer:
The main threat to our weather from space junk is rather indirect: the density of the junk may become so great that it could hinder our ability to use weather satellites, and hence to monitor weather changes caused by our own ground-based pollution.
Explanation:
They produce heat inside the core, creating a steam like substance (carbon dioxide)
Honestly, you'd measure all of them but when people talk about cars, A/C units, or anything like that, it would be nitrogen oxide. green house's don't produce as much of a foot print mainly because they house plants which provide oxygen but they are filled with carbon monoxide so if you have any other information that would help but if not, I'd go with A