Why has tuberculosis become so difficult to treat after being diagnosed?
A. genetic resistance to antibiotics
B. many of the infected show no symptoms
C. high human population densities
D. it resides in parts of the body that make drug delivery difficult
Answer: A
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Which of the following intermolecular forces best describes why molecules like CF3CF3 are soluble in liquid CO2?
A) dipole-dipole B) induced dipole-induced dipole C) dipole-induced dipole D) ion-dipole E) hydrogen bonding
How is freshwater obtained as a marine resource?
a. Potability b. Evaporation c. Desalination d. Reverse osmosis
________ are often the best-preserved, most easily identifiable plant remains in sediments and can be used to interpret the paleoclimate
A) Corals B) Trees C) Seeds D) Pollen
Because most of Russia's coastline borders the Arctic Sea, the country faces problems with:
A) hurricanes B) heat waves C) sea ice D) Mediterranean climates