Hello There! ^_^
Your question: What gas found in cigarette smoke and automobile exhaust, blocks the transport of oxygen by hemoglobin in the blood..?
Your answer: Carbon Monoxide is the gas that is found in cigarette smoke and automobile exhaust, blocks the transport of oxygen by hemoglobin in the blood.
Hope this helps! :D
Answer:
Air, everywhere, salt, and in the cold
Explanation:
Pulmonary vein. It enters your pulmonary vein and then enters your left atrium.
I hope that helped :)