Which of the following statements about ozone depletion are true? Check all that apply.
_____ Concentrations of ozone-depleting chemicals continue to rise in the atmosphere.
_____ Chlorofluorocarbons (CFCs) are the major cause of ozone depletion.
_____ Free chlorine in the upper atmosphere catalyzes the conversion of O3 into O2.
_____ Weather conditions also influence the size of the ozone hole in the stratosphere.
_____ CFCs are acted on by conditions in the stratosphere to form diatomic chlorine (Cl2).
_____ Concentrations of ozone-depleting chemicals continue to rise in the atmosphere.
__X__ Chlorofluorocarbons (CFCs) are the major cause of ozone depletion.
__X__ Free chlorine in the upper atmosphere catalyzes the conversion of O3 into O2.
__X__ Weather conditions also influence the size of the ozone hole in the stratosphere.
__X__ CFCs are acted on by conditions in the stratosphere to form diatomic chlorine (Cl2).
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In the alveoli
A. oxygen diffuses into the blood while carbon dioxide diffuses out of the blood. B. oxygen diffuses out of the blood while carbon dioxide diffuses into the blood. C. both oxygen and carbon dioxide diffuse out of the blood. D. both oxygen and carbon dioxide diffuse into the blood. E. no exchange with the blood occurs.
The four major groups of organic compounds are
A. carbohydrates, proteins, amino acids, and nucleic acids. B. fats, waxes, carbohydrates, and amino acids. C. carbohydrates, lipids, steroids, and monosaccharides. D. carbohydrates, lipids, proteins, and nucleic acids. E. lipids, fats, waxes, and steroids.
Litterbags can be used to estimate the rate of decomposition
Indicate whether the statement is true or false
Depending on the organism, direct examination of a specimen is often the most rapid diagnostic tool used in the clinical microbiology lab. You have a sample of pus from a patient's penis. What will be the easiest test to confirm that the patient has gonorrhea?
A. Gram stain B. ELISA C. Agglutination reaction D. Microarray