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ahmedkamal ahmedkamal
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6 years ago
Hypoxia
 
  a. is the reduced availability of oxygen.
  b. occurs at lower altitudes because the atmosphere contains less oxygen at sea level.
  c. exerts no stress on humans.
  d. is a problem for people living at sea level.
  e. is closely related to dyslexia.
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6 years ago
a
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