Human blood contains which of the following buffers?
A) H2CO3/HCO3-
B) H2PO4-/HPO42-
C) both a and b
D) neither a nor b
C
Environmental & Atmospheric Sciences
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Sir Isaac Newton was convicted of heresy for supporting the Sun-centered view of the universe
Indicate whether the statement is true or false
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What is generally the range of a star's hydrogen burning lifetime?
A. from 2 billion to 15 billion years B. from 20 billion to 100 billion years C. from a few hundred thousand to 20 billion years D. from a few million to 50 billion years
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Distribution of precipitation during the year:
Environmental & Atmospheric Sciences
Which of these is listed by EPA as a criteria air pollutant?
A. mercury B. chlorofluorocarbons C. carbon monoxide D. All of these are criteria air pollutants.
Environmental & Atmospheric Sciences