Carbon Monoxide Poisoning
Carbon monoxide (CO) is a poisonous gas that has is odorless, colorless, and tasteless. These qualities make it possible for you to breathe in toxic amounts of carbon monoxide without realizing that you are in danger.
Carbon monoxide is produced when materials that contain carbon, such as wood, coal, gasoline, oil, or natural gas, are burned. If the space where the materials are burned is not ventilated properly, then the carbon monoxide that is released can build to dangerous levels.
Inhaling carbon monoxide causes the gas to build up in your bloodstream. CO molecules displace oxygen in your blood, depriving your heart, brain, and other organs of oxygen. Early signs of carbon monoxide poisoning include flu-like symptoms, such as dizziness, drowsiness, headache, blurred vision, nausea, and vomiting. Prolonged exposure to large amounts of CO can lead to unconsciousness, irreversible heart, lung, or brain damage, and death.
People who are most at risk of carbon monoxide poisoning include pregnant women, young children, the elderly, and people with serious heart or lung conditions. To prevent carbon monoxide poisoning, people should make sure that places where carbon-containing materials are burned are properly ventilated. Carbon monoxide detectors should also be present in homes, garages, and workspaces.
Which word would best replace the word 'displace,' found in paragraph 3?

Question

Carbon Monoxide Poisoning
Carbon monoxide (CO) is a poisonous gas that has is odorless, colorless, and tasteless. These qualities make it possible for you to breathe in toxic amounts of carbon monoxide without realizing that you are in danger.
Carbon monoxide is produced when materials that contain carbon, such as wood, coal, gasoline, oil, or natural gas, are burned. If the space where the materials are burned is not ventilated properly, then the carbon monoxide that is released can build to dangerous levels.
Inhaling carbon monoxide causes the gas to build up in your bloodstream. CO molecules displace oxygen in your blood, depriving your heart, brain, and other organs of oxygen. Early signs of carbon monoxide poisoning include flu-like symptoms, such as dizziness, drowsiness, headache, blurred vision, nausea, and vomiting. Prolonged exposure to large amounts of CO can lead to unconsciousness, irreversible heart, lung, or brain damage, and death.
People who are most at risk of carbon monoxide poisoning include pregnant women, young children, the elderly, and people with serious heart or lung conditions. To prevent carbon monoxide poisoning, people should make sure that places where carbon-containing materials are burned are properly ventilated. Carbon monoxide detectors should also be present in homes, garages, and workspaces.
Which word would best replace the word 'displace,' found in paragraph 3?

Quizplus · Accepted Answer

"Take over" is another way to say "displace." For this question, the best option would be 'take over' because as stated in paragraph 3, the CO molecules displace oxygen in your blood, depriving organs of oxygen. Therefore, the CO molecules have taken over oxygen.
'Reinstate' means that something has been restored or put back in place. In this case, the best option would be 'take over' because as stated in paragraph 3, the CO molecules displace oxygen in your blood, depriving organs of oxygen. Since oxygen has been deprived from organs, it is impossible that the CO molecules 'reinstate' the oxygen. Therefore, it is incorrect.
'Erase' means that all traces of something have been deleted. It is most often used with written work or data, and would be a bit strange in this case. For this question, the best option would be 'take over' because as stated in paragraph 3, the CO molecules displace oxygen in your blood, depriving organs of oxygen. Since oxygen has been deprived from organs, it is impossible that the CO molecules 'erase' the oxygen. Therefore, it is incorrect.
'Combine' means that something has been joined together. In this case, the best option would be 'take over' because as stated in paragraph 3, the CO molecules displace oxygen in your blood, depriving organs of oxygen. Since oxygen has been deprived from organs, it is impossible that the CO molecules could 'join together' with the oxygen. Therefore, it is incorrect.

Carbon Monoxide Poisoning Carbon Monoxide (CO) Is a Poisonous Gas That Has Is