Answer:
air pollution can irritate your airways and may cause shortness of breath, coughing, wheezing, asthma episodes and chest pain.
Explanation:
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B They use up food and water and end up killing native species
Answer:
Attached answer..........
Answer:
Photosynthetic organisms were making oxygen, but it reacted with the iron dissolved in seawater to form iron oxide minerals on the ocean floor, creating banded iron formations. ... The oxygen that is now in the Earth's atmosphere was not there at the beginning.
Explanation:
Answer:
Nutrients
Explanation:
The oxygen gotten from the respiratory system through inhalation combines with the glucose gotten from the food we eat (digestive system) to create nutrients for the body (circulatory system).
The oxygen from the inhalation helps in the cellular breakdown of food particles which results in the production of glucose which is a form of nutrients needed by the body for its daily activities.
These are 3 ways that these three systems work together