Science Help Plz

which of the following statements about earths atmosphere is true?

a. earths atmosphere contains 78 percent water vapor which is essential to life

b. earhts atmoshpere contains 21 percent 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

Is it A.?

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  1. Thanks for nothing people

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  2. Homework Posting Tips

    Please be patient. All tutors are volunteers, and sometimes a tutor may not be immediately available. Please be patient while waiting for a response to your question.

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    Ms. Sue
  3. I don't agree with A.

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  4. It is not A. Because the hydrosphere is the layer that contains all water. Therefor water vapor would be the hydrosphere. The answer would be B. The atmosphere contains 21% oxygen, 78% nitrogen and the rest is other gasses.

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  5. It's B

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  6. JUST TELL US
    NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW

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  7. B nitrogen 78% and oxygen 21% are the most prevalent.

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  8. a
    d
    c
    b
    c
    d
    a
    a

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  9. con nexus is so cause the test is 21 questions not 8

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  10. just whats the answer

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  11. d
    b
    b
    b

    100% just took the quiz

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  12. What is the answer?

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  13. yeyebro is an the test is 22 qustions long

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