Which is a true statement about air? *
a. Airs is a mixture of 87% nitrogen, 11% carbon dioxide and many other gases, and 21% oxygen.
b. Air is a mixture of 78% nitrogen, 1% carbon dioxide and many other gases, and 21% oxygen.
c. Air is a mixture of 81% nitrogen, 17% carbon dioxide and many other gases, and 12% oxygen.
d. Air is a mixture of 87% nitrogen, 7% carbon dioxide and many other gases, and 21% oxygen.
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Answer:
B. Air is 78% nitrogen, 21% oxygen and 1% carbon dioxide, water vapor and noble gases..
Explanation:
Hope it helps (●'◡'●).
Answer:
B. Air is a mixture of 78% nitrogen, 1% carbon dioxide and many other
Gases,and 21% oxygen
Explanation:
Dana makatulong
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