Which of the following describes what happens to a radiosonde balloon as it ascends through the atmosphere?
A. It expands.
B. It contracts at first, than expands.
C. It contracts.
D. It maintains a constant pressure.
Answer: A
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United States dependence on foreign countries for mineral resources other than oil could occur in the future because of the emerging demand for
a. lithium for cell phone, laptop and electric car batteries b. lithium for LED lights c. silver nitrate for cell phone, laptop and electric car batteries d. mercury for digital camera batteries e. granite kitchen counter tops
Physical, chemical, and biological factors contribute to soil formation.
Answer the following statement true (T) or false (F)
Which of the following is the most popular and widely used map prepared by the U.S. Geological Survey?
A) a topographic map B) a Robinson projection C) a resources map D) portolan chart
How do the strength and cohesion of clay-rich regolith or soil change with the addition of water?
A) Water reduces the strength of clays but raises the cohesion of the soil. B) Water increases the strength and cohesion. C) Water lowers the strength and cohesion. D) Water does not affect the cohesion but lowers the strength.