Which of the following statements about the composition of earths atmosphere is true?
a)earth...
Which of the following statements about the composition of earths atmosphere is true?
a)earths atmosphere contains 78% water vapor which is essential to life.
b)earths atmosphere contains 21% oxygen.
c)earths atmosphere contains carbon dioxide which all life forms require.
d)earths atmosphere allows radiation from the sun to pass through it and warm earths surface.
Answers: 1
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Specific heat is the amount of heat required to raise the temperature of a material by 1°c per what unit? a. volumeb. joulec. massd. pressuree. density
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