Answer:
so many processes requires oxygen to operate .
An example is the process of plants making their own food .
The answer is a the nervous system
The nervous system is connected to your brain and controls each and every action in your body.
If photosynthesis stopped, plants would stop converting carbon dioxide -- an air pollutant -- to organic material. ... Even if all the plants on Earth were to die, people would remain resourceful -- especially if their lives depended on it.
I think the answer is B..
Answer:
connotation, annotations, organizational.