Altitude illness is a problem caused by:
A) hypoxia due to low atmospheric pressures.
B) the effects of hyperbaric hypoxia on the central nervous system.
C) hypercarbia due to high atmospheric pressures.
D) a decreased PaO2 while descending from altitude.
Answer: A) hypoxia due to low atmospheric pressures.
You might also like to view...
The main cause of civil strife in Rwanda stems from
A) antidemocratic values learned from the Germans. B) interference by South Africa. C) the Belgian colonial practice of favoring Tutsis. D) the legacy of superpower competition left over from the Cold War.
Geologists know more about Cenozoic Earth and life history than about any other era of geologic time
Indicate whether the statement is true or false
Tree rings can give insight into past:
A) moisture and temperature. B) fire and disease. C) air pollution. D) both A and B.
Which one of the following statements about the carbon, phosphorus, and nitrogen cycles is true?
A) The major source of carbon used by plants is the carbonate rocks and soil. B) The major source of nitrogen used by plants in photosynthesis is the atmosphere. C) Phosphorus has no atmospheric component. D) Soil bacteria drive the phosphorus cycle.