Other Answers (11)

• Bob326 wrote:
  %26quot;Go, try to live on Venus. Even without the lead-melting temperatures, the amount of CO2, sulfur dioxide, sulfuric acid and lack of oxygen in the atmosphere can surely be considered poisonous by anything living on Earth.%26quot;
  
  CO2 in high concentrations will suffocate you. Too much oxygen causes Pulmonary Oxygen Toxicity and will kill you. And of course, sulfur will kill you. So in reality, Oxygen is poisonous too.
  
  All of the planets on the list have poisonous atmospheres. Earth is the only planet that supports life as we know it and the atmosphere is not breathe-able by humans or other animals. So the answer is %26quot;E-all of the above%26quot;.
  
  But we are %26quot;apparently%26quot; at a critical point where if we do nothing now the atmosphere will have a runaway greenhouse effect. Mars%26#039; atmosphere is too thin to have any real greenhouse effect, we can%26#039;t get passed the first layer of Jupiter%26#039;s atmosphere to determine what is in there, Venus is theorized to once have had liquid water on it but boiled away (it is just a theory and basis for the so-called %26quot;runaway greenhouse effect%26quot;), and Earth is apparently at a point where it is about to have a runaway greenhouse.
  
  I%26#039;m just humoring Dana, I mean, Drholdz.
• Jim Z wrote
  %26quot;It saddens me that our education system would label CO2 a poison but that is what you get when leftist run it.%26quot;
  
  Go, try to live on Venus. Even without the lead-melting temperatures, the amount of CO2, sulfur dioxide, sulfuric acid and lack of oxygen in the atmosphere can surely be considered poisonous by anything living on Earth.
  
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  Edit:
  Mike B wrote
  %26quot;CO2 in high concentrations will suffocate you. Too much oxygen causes Pulmonary Oxygen Toxicity and will kill you. And of course, sulfur will kill you. So in reality, Oxygen is poisonous too.%26quot;
  
  I%26#039;m not sure where you are going with this. Too much of anything could be considered poisonous.
  
  %26quot;All of the planets on the list have poisonous atmospheres. Earth is the only planet that supports life as we know it and the atmosphere is not breathe-able by humans or other animals.%26quot;
  
  The atmosphere includes the troposphere, where we live. Is the entire atmosphere habitable by life as we know it? No, but both the troposphere and stratosphere harbor life.
  
  %26quot;So the answer is %26quot;E-all of the above%26quot;.%26quot;
  
  I am not sure why you would say this--Venus is the only planet that fits both criteria: 1) It has a poisonous atmosphere, and 2) It is the product of a runaway greenhouse effect.
• d
  
  please stop doing your homework on line; you are wasting any chance of a decent education and are simply increasing the chances that you will end up with a low-paying job and a miserable life:
  Education is valuable!
  
  P.S. To mikira - we%26#039;ve been sending probes to Venus for 40 years!!
  (Plus you can tell the constituency of an atmosphere without going there - spectral analysis for a start)
• Its a couple hundred degrees warmer on the dark side of Venus than on the dark side of Mercury, which is half the distance to the sun that Venus is. From satellite data we know the extreme heat isn%26#039;t due to any internal heating of the planet.
• With an atmosphere almost 100 times the pressure a co2 level of ~95% and closer to the Sun the answer can only be (C)
• CO2 is not poisons .. the plants use it up almost as fast as we make it. Mars has CO2 in the atmosphere , but Mars does not have plants to recycle the CO2 into O2..
• It saddens me that our education system would label CO2 a poison but that is what you get when leftist run it.
• Mars. Homework question, you get the answer you deserve.
• C
• google says c