The correct answer is C, Oxygen.
During aerobic cellular respiration, oxygen combines with hydrogen ions and water is released as a by-product of respiration.
Explanation;
Cellular respiration allows organisms to release energy stored in chemical bonds of glucose, and other nutrients. The energy in glucose or other nutrients such as fats is used to produce ATP, which cells use to supply their energy needs. During aerobic respiration (in presence of oxygen), oxygen is reduced and water is produced together with carbon dioxide as by-products.
I don't think the answer is A as that seems a bit drastic, I think it's C.
The next step would be to follow the AED prompts.
An AED or Automated External Defibrillator refers to a lightweight, small apparatus, which evaluates an individual's heart rhythm and can determine the irregular heart rhythms, like VF (ventricular fibrillation) or VT (ventricular tachycardia), also called Sudden Cardiac Arrest.
Automated external defibrillators can assist in saving many lives at the time of sudden cardiac arrest. However, even after training, memorizing the steps to use an AED in the right manner can be tough.
Answer:
<h2>Secondary air pollutants are pollutants which form in the atmosphere.</h2>
Explanation:
Examples of a secondary pollutant include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight; NO2, which is formed as NO combines with oxygen in the air; and acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water.