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Biology, 22.06.2019 21:00
An adult inhales about 6.0×10−4 m3 of fresh air during a breath. only 20% of fresh air is oxygen. assume the pressure in the lungs is 1.0×105 paand the air is at a temperature of 300 k. how many oxygen molecules are in each breath? a. 1.4x10^23 b. 2.9x10^21 c. 4.9x10^-4 d. 2.9 x10^25
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Biology, 23.06.2019 02:40
Which in counting the age of a tree? a.rings seen in the stemb. height of the treec. width of the tree
Answers: 1
Atoxic accident occurs in your neighborhood. several adults, teenagers, and small children are prese...
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