The correct answer is B. CO.
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is produced when gasoline is burned in an engine. It is a major cause of accidental poisoning and death. CO binds to hemoglobin in the blood more readily than oxygen, preventing oxygen from being delivered to the body’s tissues. This can lead to a variety of symptoms, including headache, dizziness, nausea, and vomiting. In severe cases, CO poisoning can lead to unconsciousness and death.
CO is a particular danger in enclosed spaces, such as garages, because it can build up to high levels without being detected. If you are going to leave your car running in a garage, make sure that the garage is
41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube