Question and answer
2. The blood's ability to carry oxygen is blocked by A. tar. B. carbon monoxide. C. nicotine. D. formaldehyde.
The answer is B. carbon monoxide. ; CO binds better to hemoglobin than oxygen does. [ ]
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Original conversation
User: 2. The blood's ability to carry oxygen is blocked by A. tar. B. carbon monoxide. C. nicotine. D. formaldehyde.

Weegy: The answer is B. carbon monoxide. ; CO binds better to hemoglobin than oxygen does. [ ]
bongche|Points 3864|

User: 4. Tobacco smoke paralyzes and kills A. cilia. B. alveoli. C. lungs. D. mucus.

Weegy: Tobacco smoke paralyzes and kills cilia.



User: 6. Maria just found out she is pregnant. She and her husband, Ed, smoke. They both need to quit smoking now. Why should they not resume smoking after their baby is born? A. Smoking can cause their baby's growth rate to slow. B. Smoking can increase the risk of Sudden Infant Death Syndrome (SIDS). C. Smoking can increase the risk that they and their baby will develop respiratory illnesses. D. all of the above

Weegy: D. all of the above
Expert answered|simplekaren89|Points 157|

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Asked 1/22/2013 12:33:27 AM
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Weegy: The most avoidable cause of death in the United States is considered to be A. tobacco use. (More)
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Asked 1/22/2013 12:28:19 AM
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1. When using illegal drugs, the risk of catching certain infectious diseases increases because A. people who use illegal drugs are usually ill. B. some drugs carry disease. C. some illegal drug users share needles. D. people who use illegal drugs spend so much time together.
Weegy: When using illegal drugs, the risk of catching certain infectious diseases increases because: C. some illegal drug users share needles. User: 2. Which of the following is a reason a person might begin using drugs? A. to experiment B. to escape from depression or boredom C. to engage in a risk-taking behavior D. all of the above Weegy: D. all of the above (More)
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Asked 1/22/2013 12:54:20 AM
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2. _____________ are the highest ranking U.S. representatives in foreign countries. A. Ministers B. Ambassadors C. Secretaries D. None of the above
Question
Not Answered
Updated 124 days ago|4/26/2014 8:32:31 PM
1 Answer/Comment
Ambassadors are the highest ranking U.S. representatives in foreign countries.
Added 124 days ago|4/26/2014 8:32:31 PM
2. What type of mineral is BaSO4? A. Sulfide B. Halide C. Sulfate D. Oxide
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Updated 1/22/2013 6:58:35 PM
1 Answer/Comment
BaSO4 or Barite is a Sulfate.
Added 1/22/2013 6:58:37 PM
3. Rocks can only be made up of one mineral or organic material. A. True B. False
Question
Updated 1/22/2013 7:40:42 PM
1 Answer/Comment
Rocks can only be made up of one mineral or organic material. This is B. FALSE. Rocks can be made up of one or MORE minerals, and can also have organic materials.
Added 1/22/2013 7:40:42 PM
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