Stratospheric ozone is a health hazard for people with respiratory illnesses. Indicate whether the statement is true or false.
Question 2Referring to Table 1.3: If you were to take a breath of pure oxygen, from a tank, you'd be getting
about __________ the amount of oxygen you'd get by taking a normal breath of our atmosphere.
a. one-fifth
b. half
c. twice
d. three times
e. five times