Why is it important for nitrogen to be more abundant in our atmosphere than oxygen? A. Oxygen is only breathable if diluted with nitrogen.

B. Nitrogen and oxygen combine to produce weather that is essential for life.

C. Oxygen must be diluted because it is a highly combustible gas.

D. Nitrogen is a heavy molecule that pulls oxygen, a light molecule, to the surface for oxygen-dependent life to use.

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you know that this symptom is misleading and quite often is related to: heart attack

a heart attack is a condition that occurs when the blood flow that transports oxygen to the heart muscle is damaged or cut off completely. the coronary arteries that supply the heart muscle with blood flow can be blocked by the accumulation of plaque. also, when the plaque within the heart artery breaks, it creates blood clot that can also hinder the blood flow. men that are over 45years of age and women that are over 55years of age are at risk of having a heart attack. the symptoms of a heart attack include chest discomfort, chest pain, coughing, and shortness of breath.