During conditions of high humidity, the effectiveness of perspiration as a cooling mechanism for the human body
A) is reduced because less sweat can evaporate
B) is reduced because less condensation occurs
C) is enhanced because more sweat can evaporate
D) is enhanced because more condensation occurs
Answer: A
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Which of the following compares the geographical pattern of average air temperature near sea level in the Southern Hemisphere and Northern Hemisphere?
A. It is more homogeneous in the Southern Hemisphere. B. It is equally homogeneous in both hemispheres C. It is less homogeneous in the Southern Hemisphere. D. It is more heterogeneous in the Southern Hemisphere.
Which nation is taking the initiative to reinvent the ancient Silk Road as a modern transportation route for contemporary trade?
A) China B) Russia C) Mongolia D) Uzbekistan E) Kazakhstan
Radioactive isotope dating techniques are usually used for sedimentary rocks.
Answer the following statement true (T) or false (F)
Viscosity is a property of a fluid that relates to how easily the fluid flows. A material that is viscous ________.
A. is always cold B. flows easily C. is always hot D. flows less easily E. is always a solid