We are affected because the clean air that was there is dirty carbon dioxide that we cant breathe in,so we suffer from lack of oxygen and that might kill us and harm our youth.
The photosynthesis I guess
Five awesome vessels enter and leave the heart: the unrivaled and second rate vena cava, the aspiratory corridor, the pneumonic vein, and the aorta. The prevalent vena cava and mediocre vena cava are veins that arrival deoxygenated blood from dissemination in the body and purge it into the correct chamber.
The answer to your question is,
Catalysts
-Mabel <3
